diff --git a/scripts/make_generated_files.bat b/scripts/make_generated_files.bat
index 4c4b53e..e4465d8 100644
--- a/scripts/make_generated_files.bat
+++ b/scripts/make_generated_files.bat
@@ -1,9 +1,9 @@
 @rem Generate automatically-generated configuration-independent source files
 @rem and build scripts.
 @rem Perl and Python 3 must be on the PATH.
-perl scripts\generate_errors.pl || exit /b
-perl scripts\generate_query_config.pl || exit /b
-perl scripts\generate_features.pl || exit /b
-perl scripts\generate_visualc_files.pl || exit /b
-python scripts\generate_psa_constants.py || exit /b
-python tests\scripts\generate_psa_tests.py || exit /b
+perl scripts\generate_errors.pl || exit /b 1
+perl scripts\generate_query_config.pl || exit /b 1
+perl scripts\generate_features.pl || exit /b 1
+perl scripts\generate_visualc_files.pl || exit /b 1
+python scripts\generate_psa_constants.py || exit /b 1
+python tests\scripts\generate_psa_tests.py || exit /b 1