diff --git a/Source/Core/Common/Src/Common.h b/Source/Core/Common/Src/Common.h
index b254076165..aa2f01b662 100644
--- a/Source/Core/Common/Src/Common.h
+++ b/Source/Core/Common/Src/Common.h
@@ -94,7 +94,7 @@
 		#ifndef _SECURE_SCL
 			#error Please define _SECURE_SCL=0 in the project settings
 		#else
-			CompileTimeAssert<_SECURE_SCL==0> EnsureNoSecureSCL;
+			CompileTimeAssert<_SECURE_SCL==0> volatile EnsureNoSecureSCL;
 		#endif
 	}
 
diff --git a/Source/Plugins/Plugin_DSP_HLE/Src/UCodes/UCode_Zelda.h b/Source/Plugins/Plugin_DSP_HLE/Src/UCodes/UCode_Zelda.h
index 1d6d060c44..d69c7267f6 100644
--- a/Source/Plugins/Plugin_DSP_HLE/Src/UCodes/UCode_Zelda.h
+++ b/Source/Plugins/Plugin_DSP_HLE/Src/UCodes/UCode_Zelda.h
@@ -130,7 +130,7 @@ union ZeldaUnkPB
 
 namespace {
     // If this miscompiles, adjust the size of ZeldaVoicePB to 0x180 bytes (0xc0 shorts).
-    CompileTimeAssert<sizeof(ZeldaVoicePB) == 0x180> ensure_zpb_size_correct;
+    CompileTimeAssert<sizeof(ZeldaVoicePB) == 0x180> volatile ensure_zpb_size_correct;
 }  // namespace
 
 class CUCode_Zelda : public IUCode