1 files changed, 1 insertions, 1 deletions

diff --git a/bitbake/lib/bb/siggen.py b/bitbake/lib/bb/siggen.py
index 0ac3952466..e0e03318a6 100644
--- a/bitbake/lib/bb/siggen.py
+++ b/bitbake/lib/bb/siggen.py
@@ -748,7 +748,7 @@ def clean_basepath(basepath):
     if basepath[0] == '/':
         return cleaned
 
-    if basepath.startswith("mc:"):
+    if basepath.startswith("mc:") and basepath.count(':') >= 2:
         mc, mc_name, basepath = basepath.split(":", 2)
         mc_suffix = ':mc:' + mc_name
     else: