diff --git a/runtime/syscall-server/syscall_context.cpp b/runtime/syscall-server/syscall_context.cpp
index 8af3fcc2..6acf18cc 100644
--- a/runtime/syscall-server/syscall_context.cpp
+++ b/runtime/syscall-server/syscall_context.cpp
@@ -50,7 +50,7 @@
 			    .imm = IMM })
 #endif
 
-#if linux && !BPFTIME_BUILD_WITH_LIBBPF
+#if __linux__ && !BPFTIME_BUILD_WITH_LIBBPF
 #define offsetofend(type, member) (offsetof(type, member) + sizeof(((type *)0)->member))
 static void *libc_handle = dlopen(LIBC_SO, RTLD_LAZY);
 static auto libc_syscall =