diff --git a/src/coreclr/src/vm/comdelegate.cpp b/src/coreclr/src/vm/comdelegate.cpp
index ac3c4d0083ea5..958a2202a35d1 100644
--- a/src/coreclr/src/vm/comdelegate.cpp
+++ b/src/coreclr/src/vm/comdelegate.cpp
@@ -1132,7 +1132,7 @@ void COMDelegate::BindToMethod(DELEGATEREF   *pRefThis,
     GCPROTECT_END();
 }
 
-#if defined(TARGET_X86) && defined(TARGET_WINDOWS)
+#if defined(TARGET_X86)
 // Marshals a managed method to an unmanaged callback provided the
 // managed method is static and it's parameters require no marshalling.
 PCODE COMDelegate::ConvertToCallback(MethodDesc* pMD)
@@ -1189,7 +1189,7 @@ PCODE COMDelegate::ConvertToCallback(MethodDesc* pMD)
     _ASSERTE(pCode != NULL);
     return pCode;
 }
-#endif // defined(TARGET_X86) && defined(TARGET_WINDOWS)
+#endif // defined(TARGET_X86)
 
 // Marshals a delegate to a unmanaged callback.
 LPVOID COMDelegate::ConvertToCallback(OBJECTREF pDelegateObj)
diff --git a/src/coreclr/src/vm/comdelegate.h b/src/coreclr/src/vm/comdelegate.h
index a87845dbe0ce8..d11d79f9a830a 100644
--- a/src/coreclr/src/vm/comdelegate.h
+++ b/src/coreclr/src/vm/comdelegate.h
@@ -84,11 +84,11 @@ class COMDelegate
     // Marshals a delegate to a unmanaged callback.
     static LPVOID ConvertToCallback(OBJECTREF pDelegate);
 
-#if defined(TARGET_X86) && defined(TARGET_WINDOWS)
+#if defined(TARGET_X86)
     // Marshals a managed method to an unmanaged callback.
-    // This is only used on x86 Windows. See usage for further details.
+    // This is only used on x86. See usage for further details.
     static PCODE ConvertToCallback(MethodDesc* pMD);
-#endif // defined(TARGET_X86) && defined(TARGET_WINDOWS)
+#endif // defined(TARGET_X86)
 
     // Marshals an unmanaged callback to Delegate
     static OBJECTREF ConvertToDelegate(LPVOID pCallback, MethodTable* pMT);
diff --git a/src/coreclr/src/vm/prestub.cpp b/src/coreclr/src/vm/prestub.cpp
index e75bc9f1ce7df..cd25aaa0f90e7 100644
--- a/src/coreclr/src/vm/prestub.cpp
+++ b/src/coreclr/src/vm/prestub.cpp
@@ -439,7 +439,7 @@ PCODE MethodDesc::GetPrecompiledCode(PrepareCodeConfig* pConfig)
 
 #ifdef FEATURE_TIERED_COMPILATION
             bool shouldTier = pConfig->GetMethodDesc()->IsEligibleForTieredCompilation();
-#if !defined(TARGET_X86) || !defined(TARGET_WINDOWS)
+#if !defined(TARGET_X86)
             CallerGCMode callerGcMode = pConfig->GetCallerGCMode();
             // If the method is eligible for tiering but is being
             // called from a Preemptive GC Mode thread or the method
@@ -458,7 +458,7 @@ PCODE MethodDesc::GetPrecompiledCode(PrepareCodeConfig* pConfig)
                 codeVersion.SetOptimizationTier(NativeCodeVersion::OptimizationTierOptimized);
                 shouldTier = false;
             }
-#endif  // !TARGET_X86 || !TARGET_WINDOWS
+#endif  // !TARGET_X86
 #endif // FEATURE_TIERED_COMPILATION
 
             if (pConfig->SetNativeCode(pCode, &pCode))