diff --git a/mode/perl.py b/mode/perl.py
index 4dfc196..1c7194b 100644
--- a/mode/perl.py
+++ b/mode/perl.py
@@ -773,10 +773,11 @@ class Perl(mode.Fundamental):
         return path
 
     def get_inc(self):
+        a = self.window.application
         if self.perlinc is None:
             cmd = "perl -e 'print join(\"\\n\", @INC);'"
             if a.config.get('perl.libs', None):
-                s = ':'.join(['%r' % x for x in a.config.get('perl.libs')])
+                s = ':'.join(['%s' % x for x in a.config.get('perl.libs')])
                 cmd = 'PERL5LIB=%r %s' % (s, cmd)
             elif a.config.get('perl.lib', None):
                 cmd = 'PERL5LIB=%r %s' % (a.config.get('perl.lib'), cmd)