diff --git a/linux/ibus-keyman/build.sh b/linux/ibus-keyman/build.sh
index e5f5cec046..4eed1e2805 100755
--- a/linux/ibus-keyman/build.sh
+++ b/linux/ibus-keyman/build.sh
@@ -19,7 +19,7 @@ builder_describe \
   "test" \
   "install                   install artifacts" \
   "uninstall                 uninstall artifacts" \
-  "@/core :arch"
+  "@/core:arch"
 
 builder_parse "$@"