diff --git a/examples/intrinsics/sse4.h b/examples/intrinsics/sse4.h
index e3a4e277..b0365c86 100644
--- a/examples/intrinsics/sse4.h
+++ b/examples/intrinsics/sse4.h
@@ -274,7 +274,7 @@ static FORCEINLINE bool __any(__vec4_i1 mask) {
 }
 
 static FORCEINLINE bool __all(__vec4_i1 mask) {
-    return (_mm_movemask_ps(mask.v)=0xF);
+    return (_mm_movemask_ps(mask.v)==0xF);
 }
 
 static FORCEINLINE bool __none(__vec4_i1 mask) {