diff --git a/mozilla/network/module/nsHttpUrl.cpp b/mozilla/network/module/nsHttpUrl.cpp
index e493d2d0ab1..adf250c0f04 100644
--- a/mozilla/network/module/nsHttpUrl.cpp
+++ b/mozilla/network/module/nsHttpUrl.cpp
@@ -275,6 +275,8 @@ NS_METHOD nsHttpUrlImpl::AddMimeHeader(const char *name, const char *value)
 				aName, 
 				aVal,
 				TRUE);
+    PR_Free(aName);
+    PR_Free(aVal);
     return NS_OK;
 }