diff --git a/wlauto/instrumentation/fps/__init__.py b/wlauto/instrumentation/fps/__init__.py
old mode 100644
new mode 100755
index 4acd4574..5f09fe7e
--- a/wlauto/instrumentation/fps/__init__.py
+++ b/wlauto/instrumentation/fps/__init__.py
@@ -166,7 +166,7 @@ class FpsInstrument(Instrument):
 
     def slow_update_result(self, context):
         result = context.result
-        if result.has_metric('execution_time'):
+        if self.crash_check and result.has_metric('execution_time'):
             self.logger.debug('Checking for crashed content.')
             exec_time = result['execution_time'].value
             fps = result['FPS'].value