diff --git a/reactos/ReactOS-amd64.rbuild b/reactos/ReactOS-amd64.rbuild
index 6c7bb4e1e83..c0876e537a3 100644
--- a/reactos/ReactOS-amd64.rbuild
+++ b/reactos/ReactOS-amd64.rbuild
@@ -11,10 +11,12 @@
 	<define name="_AMD64_" />
 	<define name="_M_AXP64" />
 	<define name="__x86_64__" />
-	<define name="_X86AMD64_" />
+	<!-- define name="_X86AMD64_" / FIXME: what is this used for? -->
 	<define name="_WIN64" />
 	<define name="TARGET_amd64" host="true" />
 
+	<define name="USE_COMPILER_EXCEPTIONS" />
+
 	<property name="PLATFORM" value="PC"/>
 	<property name="usewrc" value="false"/>
 	<property name="WINEBUILD_FLAGS" value="--kill-at"/>