diff --git a/install.sh b/install.sh
index 69e011d..ad0ca61 100755
--- a/install.sh
+++ b/install.sh
@@ -48,6 +48,13 @@ for cmd in dtparam dtoverlay ; do
     errorFound=1
   fi
 done
+
+if [ ! -x seeed-voicecard -o ! -f seeed-voicecard.service ]; then
+  echo "Please run this script in the project directory"
+  echo "which has files such as install.sh and seeed-voicecard.service"
+  errorFound=1
+fi
+
 if [ $errorFound = 1 ] ; then
   echo "Errors found, exiting." 1>&2
   exit 1