1 files changed, 2 insertions, 2 deletions

diff --git a/bitbake/lib/bb/cache.py b/bitbake/lib/bb/cache.py
index 36270d0093..c85effd6f0 100644
--- a/bitbake/lib/bb/cache.py
+++ b/bitbake/lib/bb/cache.py
@@ -238,7 +238,7 @@ def virtualfn2realfn(virtualfn):
     Convert a virtual file name to a real one + the associated subclass keyword
     """
     mc = ""
-    if virtualfn.startswith('mc:'):
+    if virtualfn.startswith('mc:') and virtualfn.count(':') >= 2:
         elems = virtualfn.split(':')
         mc = elems[1]
         virtualfn = ":".join(elems[2:])
@@ -268,7 +268,7 @@ def variant2virtual(realfn, variant):
     """
     if variant == "":
         return realfn
-    if variant.startswith("mc:"):
+    if variant.startswith("mc:") and variant.count(':') >= 2:
         elems = variant.split(":")
         if elems[2]:
             return "mc:" + elems[1] + ":virtual:" + ":".join(elems[2:]) + ":" + realfn