diff --git a/js/src/jsscript.cpp b/js/src/jsscript.cpp
index bd46de7453e..0edf5070724 100644
--- a/js/src/jsscript.cpp
+++ b/js/src/jsscript.cpp
@@ -1636,16 +1636,14 @@ js_DestroyScript(JSContext *cx, JSScript *script)
         JSStackFrame *fp = js_GetTopStackFrame(cx);
 
         if (!(fp && (fp->flags & JSFRAME_EVAL))) {
-            js_PurgePropertyCacheForScript(cx, script);
-
-            if (!cx->runtime->gcRunning) {
 #ifdef CHECK_SCRIPT_OWNER
-                JS_ASSERT(script->owner == cx->thread);
+            JS_ASSERT(script->owner == cx->thread);
 #endif
+            js_PurgePropertyCacheForScript(cx, script);
 #ifdef JS_TRACER
+            if (!cx->runtime->gcRunning)
                 js_PurgeScriptFragments(cx, script);
 #endif
-            }
         }
     }