diff --git a/Makefile.PL b/Makefile.PL
index 6e3ef4a..e13a94f 100644
--- a/Makefile.PL
+++ b/Makefile.PL
@@ -1,3 +1,4 @@
+BEGIN { push @INC, '.'; }
 use inc::Module::Install;
 
 RTx ('RT-Extension-CommandByMail');