diff --git a/target/arm/kvm-consts.h b/target/arm/kvm-consts.h
index a2c9518592..06b6c920b1 100644
--- a/target/arm/kvm-consts.h
+++ b/target/arm/kvm-consts.h
@@ -21,7 +21,9 @@
 #define MISMATCH_CHECK(X, Y) QEMU_BUILD_BUG_ON(X != Y)
 
 #else
-#define MISMATCH_CHECK(X, Y)
+
+#define MISMATCH_CHECK(X, Y) QEMU_BUILD_BUG_ON(0)
+
 #endif
 
 #define CP_REG_SIZE_SHIFT 52