diff --git a/common/src/main/java/net/neoforged/gradle/common/extensions/subsystems/SubsystemsExtension.java b/common/src/main/java/net/neoforged/gradle/common/extensions/subsystems/SubsystemsExtension.java
index 2a2f008a5..4864fafd8 100644
--- a/common/src/main/java/net/neoforged/gradle/common/extensions/subsystems/SubsystemsExtension.java
+++ b/common/src/main/java/net/neoforged/gradle/common/extensions/subsystems/SubsystemsExtension.java
@@ -1,14 +1,18 @@
 package net.neoforged.gradle.common.extensions.subsystems;
 
 import net.minecraftforge.gdi.ConfigurableDSLElement;
+import net.neoforged.gradle.dsl.common.extensions.subsystems.DecompilerLogLevel;
 import net.neoforged.gradle.dsl.common.extensions.subsystems.Subsystems;
+import org.gradle.api.GradleException;
 import org.gradle.api.Project;
 import org.gradle.api.provider.ProviderFactory;
 
 import javax.inject.Inject;
 import java.util.Arrays;
+import java.util.Locale;
 
 public abstract class SubsystemsExtension implements ConfigurableDSLElement<Subsystems>, Subsystems {
+    private static final String PROPERTY_PREFIX = "neogradle.subsystems.";
     private final Project project;
 
     @Inject
@@ -16,10 +20,16 @@ public SubsystemsExtension(Project project) {
         this.project = project;
 
         ProviderFactory providers = project.getProviders();
-        getDecompiler().getMaxMemory().convention(providers.gradleProperty("neogradle.subsystems.decompiler.maxMemory"));
-        getDecompiler().getMaxThreads().convention(providers.gradleProperty("neogradle.subsystems.decompiler.maxThreads").map(Integer::parseUnsignedInt));
-        getDecompiler().getLogLevel().convention(providers.gradleProperty("neogradle.subsystems.decompiler.logLevel"));
-        getDecompiler().getJvmArgs().convention(providers.gradleProperty("neogradle.subsystems.decompiler.jvmArgs").map(s -> Arrays.asList(s.split("\\s+"))));
+        getDecompiler().getMaxMemory().convention(providers.gradleProperty(PROPERTY_PREFIX + "decompiler.maxMemory"));
+        getDecompiler().getMaxThreads().convention(providers.gradleProperty(PROPERTY_PREFIX + "decompiler.maxThreads").map(Integer::parseUnsignedInt));
+        getDecompiler().getLogLevel().convention(providers.gradleProperty(PROPERTY_PREFIX + "decompiler.logLevel").map(s -> {
+            try {
+                return DecompilerLogLevel.valueOf(s.toUpperCase(Locale.ROOT));
+            } catch (Exception e) {
+                throw new GradleException("Unknown DecompilerLogLevel: " + s + ". Available options: " + Arrays.toString(DecompilerLogLevel.values()));
+            }
+        }));
+        getDecompiler().getJvmArgs().convention(providers.gradleProperty(PROPERTY_PREFIX + "decompiler.jvmArgs").map(s -> Arrays.asList(s.split("\\s+"))));
     }
 
     @Override
diff --git a/dsl/common/src/main/groovy/net/neoforged/gradle/dsl/common/extensions/subsystems/Decompiler.groovy b/dsl/common/src/main/groovy/net/neoforged/gradle/dsl/common/extensions/subsystems/Decompiler.groovy
index 41f8c4a72..952630cdc 100644
--- a/dsl/common/src/main/groovy/net/neoforged/gradle/dsl/common/extensions/subsystems/Decompiler.groovy
+++ b/dsl/common/src/main/groovy/net/neoforged/gradle/dsl/common/extensions/subsystems/Decompiler.groovy
@@ -34,12 +34,12 @@ interface Decompiler extends ConfigurableDSLElement<Decompiler> {
 
     /**
      * The log-level to use for the decompiler. Supported values: info, debug, warn, error.
-     * Defaults to info.
+     * Defaults to {@link DecompilerLogLevel#INFO}.
      */
     @Input
     @Optional
     @DSLProperty
-    Property<String> getLogLevel();
+    Property<DecompilerLogLevel> getLogLevel();
 
     /**
      * Allows additional JVM arguments to be added to the decompiler invocation.
diff --git a/dsl/common/src/main/groovy/net/neoforged/gradle/dsl/common/extensions/subsystems/DecompilerLogLevel.groovy b/dsl/common/src/main/groovy/net/neoforged/gradle/dsl/common/extensions/subsystems/DecompilerLogLevel.groovy
new file mode 100644
index 000000000..9e42283fe
--- /dev/null
+++ b/dsl/common/src/main/groovy/net/neoforged/gradle/dsl/common/extensions/subsystems/DecompilerLogLevel.groovy
@@ -0,0 +1,8 @@
+package net.neoforged.gradle.dsl.common.extensions.subsystems
+
+enum DecompilerLogLevel {
+    TRACE,
+    INFO,
+    WARN,
+    ERROR
+}
diff --git a/neoform/src/main/java/net/neoforged/gradle/neoform/runtime/extensions/NeoFormRuntimeExtension.java b/neoform/src/main/java/net/neoforged/gradle/neoform/runtime/extensions/NeoFormRuntimeExtension.java
index 4b4c06d77..f2d01227f 100644
--- a/neoform/src/main/java/net/neoforged/gradle/neoform/runtime/extensions/NeoFormRuntimeExtension.java
+++ b/neoform/src/main/java/net/neoforged/gradle/neoform/runtime/extensions/NeoFormRuntimeExtension.java
@@ -13,6 +13,7 @@
 import net.neoforged.gradle.dsl.common.extensions.Minecraft;
 import net.neoforged.gradle.dsl.common.extensions.MinecraftArtifactCache;
 import net.neoforged.gradle.dsl.common.extensions.subsystems.Decompiler;
+import net.neoforged.gradle.dsl.common.extensions.subsystems.DecompilerLogLevel;
 import net.neoforged.gradle.dsl.common.extensions.subsystems.Subsystems;
 import net.neoforged.gradle.dsl.common.runtime.naming.TaskBuildingContext;
 import net.neoforged.gradle.dsl.common.runtime.tasks.Runtime;
@@ -38,6 +39,7 @@
 import net.neoforged.gradle.neoform.util.NeoFormRuntimeUtils;
 import net.neoforged.gradle.util.CopyingFileTreeVisitor;
 import org.apache.commons.lang3.StringUtils;
+import org.gradle.api.GradleException;
 import org.gradle.api.Project;
 import org.gradle.api.artifacts.Configuration;
 import org.gradle.api.artifacts.Dependency;
@@ -157,7 +159,7 @@ private static TaskProvider<? extends Runtime> createDecompile(NeoFormRuntimeSpe
         Decompiler settings = spec.getProject().getExtensions().getByType(Subsystems.class).getDecompiler();
         String maxMemory = settings.getMaxMemory().getOrElse(defaultMaxMemory);
         int maxThreads = settings.getMaxThreads().getOrElse(0);
-        String logLevel = settings.getLogLevel().getOrElse("INFO");
+        String logLevel = getDecompilerLogLevelArg(settings.getLogLevel().getOrElse(DecompilerLogLevel.INFO), function.getVersion());
 
         if (settings.getJvmArgs().isPresent()) {
             jvmArgs.addAll(settings.getJvmArgs().get());
@@ -175,6 +177,21 @@ private static TaskProvider<? extends Runtime> createDecompile(NeoFormRuntimeSpe
         });
     }
 
+    private static String getDecompilerLogLevelArg(DecompilerLogLevel logLevel, String version) {
+        switch (logLevel) {
+            case TRACE:
+                return "trace";
+            case INFO:
+                return "info";
+            case WARN:
+                return "warn";
+            case ERROR:
+                return "error";
+            default:
+                throw new GradleException("LogLevel " + logLevel + " not supported by " + version);
+        }
+    }
+
     private TaskProvider<? extends Runtime> createExecute(final NeoFormRuntimeSpecification spec, final NeoFormConfigConfigurationSpecV1.Step step, final NeoFormConfigConfigurationSpecV1.Function function) {
         return spec.getProject().getTasks().register(CommonRuntimeUtils.buildTaskName(spec, step.getName()), Execute.class, task -> {
             task.getExecutingJar().set(ToolUtilities.resolveTool(task.getProject(), function.getVersion()));