diff --git a/atom/common/native_mate_converters/blink_converter.cc b/atom/common/native_mate_converters/blink_converter.cc
index c70ffe2139..5acfe545e4 100644
--- a/atom/common/native_mate_converters/blink_converter.cc
+++ b/atom/common/native_mate_converters/blink_converter.cc
@@ -280,7 +280,7 @@ bool Converter<blink::WebMouseWheelEvent>::FromV8(
   bool can_scroll = true;
   if (dict.Get("canScroll", &can_scroll) && !can_scroll) {
     out->hasPreciseScrollingDeltas = false;
-    out->setModifiers(out->modifiers() | blink::WebInputEvent::ControlKey);
+    out->setModifiers(out->modifiers() & ~blink::WebInputEvent::ControlKey);
   }
 #endif
   return true;