1 files changed, 1 insertions, 1 deletions
diff --git a/js/src/jsfun.cpp b/js/src/jsfun.cpp
index 4412362c2..be11bf436 100644
--- a/js/src/jsfun.cpp
+++ b/js/src/jsfun.cpp
@@ -1715,7 +1715,7 @@ FunctionConstructor(JSContext* cx, const CallArgs& args, GeneratorKind generator
 
             if (i < args.length() - 2) {
                 // Step 9.d.iii.
-                if (!sb.append(", "))
+                if (!sb.append(","))
                     return false;
             }
         }