diff --git a/netwerk/cache/src/nsMemoryCacheDevice.cpp b/netwerk/cache/src/nsMemoryCacheDevice.cpp
index 3f272b5ed973..82165ba1d4dc 100644
--- a/netwerk/cache/src/nsMemoryCacheDevice.cpp
+++ b/netwerk/cache/src/nsMemoryCacheDevice.cpp
@@ -96,7 +96,7 @@ nsMemoryCacheDevice::BindEntry(nsCacheEntry * entry)
         return rv;
 
     //** add size of entry to memory totals
-    return NS_ERROR_NOT_IMPLEMENTED;
+    return NS_OK;
 }