diff --git a/src/appveyor.bat b/src/appveyor.bat
index cd20a34bf42872..23207f03d2ec90 100755
--- a/src/appveyor.bat
+++ b/src/appveyor.bat
@@ -48,6 +48,10 @@ appveyor DownloadFile http://downloads.activestate.com/ActiveTcl/releases/8.6.4.
 start /wait tcl.exe --directory C:\Tcl
 
 path C:\Perl522\perl\bin;%path%;C:\Lua;C:\Tcl\bin
+
+where xsubpp
+dir C:\Perl522\perl\lib\ExtUtils\typemap
+
 @echo off
 goto :eof