diff --git a/js/src/vm/JSContext-inl.h b/js/src/vm/JSContext-inl.h
index 1d3bb19be94c..4005f7ad0961 100644
--- a/js/src/vm/JSContext-inl.h
+++ b/js/src/vm/JSContext-inl.h
@@ -155,10 +155,9 @@ class ContextChecks
     void check(JSScript* script, int argIndex) {
         MOZ_ASSERT(JS::CellIsNotGray(script));
         if (script)
-            check(script->compartment(), argIndex);
+            check(script->realm(), argIndex);
     }
 
-    void check(InterpreterFrame* fp, int argIndex);
     void check(AbstractFramePtr frame, int argIndex);
 
     void check(Handle<PropertyDescriptor> desc, int argIndex) {
diff --git a/js/src/vm/JSContext.cpp b/js/src/vm/JSContext.cpp
index faac53ad3274..ffb7f4c6b2bd 100644
--- a/js/src/vm/JSContext.cpp
+++ b/js/src/vm/JSContext.cpp
@@ -1561,18 +1561,11 @@ JS::AutoCheckRequestDepth::~AutoCheckRequestDepth()
 #endif
 
 #ifdef JS_CRASH_DIAGNOSTICS
-void
-ContextChecks::check(InterpreterFrame* fp, int argIndex)
-{
-    if (fp)
-        check(fp->environmentChain(), argIndex);
-}
-
 void
 ContextChecks::check(AbstractFramePtr frame, int argIndex)
 {
     if (frame)
-        check(frame.environmentChain(), argIndex);
+        check(frame.realm(), argIndex);
 }
 #endif