diff --git a/content/base/src/nsContentUtils.cpp b/content/base/src/nsContentUtils.cpp
index 3807c0bcd1b..41ae404256d 100644
--- a/content/base/src/nsContentUtils.cpp
+++ b/content/base/src/nsContentUtils.cpp
@@ -3544,7 +3544,6 @@ nsresult
 nsContentUtils::HoldJSObjects(void* aScriptObjectHolder,
                               nsScriptObjectTracer* aTracer)
 {
-  PRBool newHolder;
   nsresult rv = sXPConnect->AddJSHolder(aScriptObjectHolder, aTracer);
   NS_ENSURE_SUCCESS(rv, rv);