diff --git a/Utility/Glob.hs b/Utility/Glob.hs
index 5291af452a..1a77da7d3a 100644
--- a/Utility/Glob.hs
+++ b/Utility/Glob.hs
@@ -24,6 +24,7 @@ import Text.Regex.TDFA
 import Text.Regex.TDFA.String
 #else
 import Text.Regex
+import Data.Maybe
 #endif
 
 newtype Glob = Glob Regex