diff --git a/lib/checksrc.pl b/lib/checksrc.pl
index b074f2744f..df93696d78 100755
--- a/lib/checksrc.pl
+++ b/lib/checksrc.pl
@@ -120,6 +120,7 @@ sub readlocalfile {
             die "Invalid format in $dir/.checksrc on line $i\n";
         }
     }
+    close($rcfile);
 }
 
 sub checkwarn {