diff --git a/bitbake/lib/bb/fetch/__init__.py b/bitbake/lib/bb/fetch/__init__.py
index b452751c7b..65b4da07da 100644
--- a/bitbake/lib/bb/fetch/__init__.py
+++ b/bitbake/lib/bb/fetch/__init__.py
@@ -704,7 +704,7 @@ class Fetch(object):
             raise InvalidSRCREV("Please set SRCREV to a valid value")
         if not rev:
             return False
-        if rev is "SRCREVINACTION":
+        if rev == "SRCREVINACTION":
             return True
         return rev