diff --git a/bin/emerge b/bin/emerge
index b455dda..a6f6837 100755
--- a/bin/emerge
+++ b/bin/emerge
@@ -943,6 +943,8 @@ class depgraph:
 					parent_arg=arg):
 					return 0
 		except ValueError, e:
+			if "--debug" in self.myopts:
+				raise
 			pkgs = e.args[0]
 			portage.writemsg("\n\n!!! An atom in the dependencies " + \
 				"is not fully-qualified. Multiple matches:\n\n", noiselevel=-1)