diff --git a/tool.sh b/tool.sh
index 0d39c7c..3b2795f 100755
--- a/tool.sh
+++ b/tool.sh
@@ -10,7 +10,7 @@ SOURCE_FILE="$BASE/src/bindgen.cr"
 function print_clang_error {
   echo "  Bindgen requires a full installation of Clang, its libraries and development"
   echo "  headers.  Please install these first, and restart this script."
-  echo "  You can also manually run 'cmake .; make -j' in clang/ for debugging this issue."
+  echo "  You can also manually run 'cmake . && make -j' in clang/ for debugging this issue."
   echo "  Full path to clang/: $CLANG_DIR"
 
   exit 1