diff --git a/tests/test-patch.t b/tests/test-patch.t
--- a/tests/test-patch.t
+++ b/tests/test-patch.t
@@ -92,7 +92,12 @@
 
 Error exit (issue4746)
 
-  $ hg import ../c/p --config ui.patch='sh -c "exit 1"'
+  $ cat >> exit1.py <<EOF
+  > import sys
+  > sys.exit(1)
+  > EOF
+
+  $ hg import ../c/p --config ui.patch="$PYTHON '`pwd`/exit1.py'"
   applying ../c/p
   abort: patch command failed: exited with status 1
   [255]