diff --git a/media/gmp-clearkey/0.1/ClearKeySessionManager.cpp b/media/gmp-clearkey/0.1/ClearKeySessionManager.cpp
index 0fd0e9a64bd6..b453c47b9cb9 100644
--- a/media/gmp-clearkey/0.1/ClearKeySessionManager.cpp
+++ b/media/gmp-clearkey/0.1/ClearKeySessionManager.cpp
@@ -141,6 +141,7 @@ ClearKeySessionManager::CreateSession(uint32_t aPromiseId,
                            0,
                            message,
                            strlen(message));
+    delete session;
 
     return;
   }