diff --git a/packages/vsce/CHANGELOG.md b/packages/vsce/CHANGELOG.md
index 514af355..abea6a28 100644
--- a/packages/vsce/CHANGELOG.md
+++ b/packages/vsce/CHANGELOG.md
@@ -2,6 +2,9 @@
 
 All notable changes to the "cics-extension-for-zowe" extension will be documented in this file.
 
+## Recent Changes
+- BugFix: Remove the 'Show SIT Parameters' menu option when a region is inactive. [#167](https://github.com/zowe/cics-for-zowe-client/issues/167)
+
 ## `3.2.0`
 
 - BugFix: Initializing new Team Configuration File. [#33](https://github.com/zowe/cics-for-zowe-client/issues/33)
diff --git a/packages/vsce/package.json b/packages/vsce/package.json
index 36005821..fd560ab0 100644
--- a/packages/vsce/package.json
+++ b/packages/vsce/package.json
@@ -464,7 +464,7 @@
           "group": ""
         },
         {
-          "when": "view == cics-view && viewItem =~ /^cicsregion\\./",
+          "when": "view == cics-view && viewItem =~ /cicsregion.*\\.active/",
           "command": "cics-extension-for-zowe.showRegionParameters",
           "group": ""
         },
diff --git a/packages/vsce/src/commands/showParameterCommand.ts b/packages/vsce/src/commands/showParameterCommand.ts
index a4f9fb82..9b53baa0 100644
--- a/packages/vsce/src/commands/showParameterCommand.ts
+++ b/packages/vsce/src/commands/showParameterCommand.ts
@@ -23,6 +23,11 @@ export function getShowRegionSITParametersCommand(treeview: TreeView<any>) {
       return;
     }
     for (const regionTree of allSelectedNodes) {
+      if (regionTree.contextValue.includes(".inactive")) {
+        // Ignore region if not active - required for the command palette.
+        continue;
+      }
+
       const db2transactionResponse = await getResource(regionTree.parentSession.session, {
         name: "CICSSystemParameter",
         regionName: regionTree.label,
diff --git a/packages/vsce/src/trees/CICSRegionTree.ts b/packages/vsce/src/trees/CICSRegionTree.ts
index b6741f1b..5889871e 100644
--- a/packages/vsce/src/trees/CICSRegionTree.ts
+++ b/packages/vsce/src/trees/CICSRegionTree.ts
@@ -55,7 +55,9 @@ export class CICSRegionTree extends TreeItem {
       this.children = null;
       this.collapsibleState = TreeItemCollapsibleState.None;
       this.iconPath = getIconPathInResources("region-dark-disabled.svg", "region-light-disabled.svg");
+      this.contextValue += ".inactive";
     } else {
+      this.contextValue += ".active";
       this.children = [
         new CICSProgramTree(this),
         new CICSTransactionTree(this),