--- a/js/src/gc/RootMarking.cpp
+++ b/js/src/gc/RootMarking.cpp
@@ -696,17 +696,19 @@ js::gc::MarkRuntime(JSTracer *trc, bool 
     }
 
     if (rt->scriptAndCountsVector) {
         ScriptAndCountsVector &vec = *rt->scriptAndCountsVector;
         for (size_t i = 0; i < vec.length(); i++)
             MarkScriptRoot(trc, &vec[i].script, "scriptAndCountsVector");
     }
 
-    if (!IS_GC_MARKING_TRACER(trc) || rt->atomsCompartment->zone()->isCollecting()) {
+    if (!trc->runtime->isHeapMinorCollecting() &&
+        (!IS_GC_MARKING_TRACER(trc) || rt->atomsCompartment->zone()->isCollecting()))
+    {
         MarkAtoms(trc);
 #ifdef JS_ION
         /* Any Ion wrappers survive until the runtime is being torn down. */
         if (rt->hasContexts())
             ion::IonRuntime::Mark(trc);
 #endif
     }