diff --git a/src/windows/mimeconf b/src/windows/mimeconf
index 7bca0bec..865799fc 100644
--- a/src/windows/mimeconf
+++ b/src/windows/mimeconf
@@ -187,7 +187,7 @@ text/x-fictionbook = internal xsltproc fb2.xsl
 text/x-ini = internal text/plain
 text/x-mail = internal
 text/x-perl = internal text/plain
-text/x-python = exec python rclpython
+text/x-python = exec python rclpython.py
 text/x-shellscript = internal text/plain
 text/x-srt = internal text/plain
 image/x-xcf = execm rclimg.exe