diff --git a/src/BUILD b/src/BUILD
index 67fe7f9..ad767d8 100644
--- a/src/BUILD
+++ b/src/BUILD
@@ -385,7 +385,7 @@
     # In msys, a file path without .exe suffix(say foo), refers to a file with .exe
     # suffix(say foo.exe), if foo.exe exists and foo doesn't. So, on windows, we
     # need to remove bazel.exe first, so that cat to bazel won't fail.
-    cmd = "rm -f $@; cat $(location //src/main/cpp:client) $(location :package-zip" + jdk + ") > $@ && zip -qA $@",
+    cmd = "rm -f $@; cat $(location //src/main/cpp:client) $(location :package-zip" + jdk + ") > $@ && zip -qA $@ && chmod a+x $@",
     executable = 1,
     output_to_bindir = 1,
     visibility = [