diff --git a/install_obitools.sh b/install_obitools.sh
index b6e0c21..60636f9 100755
--- a/install_obitools.sh
+++ b/install_obitools.sh
@@ -111,7 +111,8 @@ else
 fi
 
 (cp build/* "${INSTALL_DIR}/bin" 2> /dev/null) \
-   || sudo cp build/* "${INSTALL_DIR}/bin"
+   || (echo "Please enter your password for installing obitools in ${INSTALL_DIR}"
+        sudo cp build/* "${INSTALL_DIR}/bin")
 
 popd