diff --git a/script/install_Parmetis.sh b/script/install_Parmetis.sh
index 636583650a72f89337281c860d9dd18873f4c7e1..91b8ec0d8ecf02e65cd083ef3d3cd0cde0d31d5a 100755
--- a/script/install_Parmetis.sh
+++ b/script/install_Parmetis.sh
@@ -5,7 +5,7 @@ discover_os
 
 # check if the directory $1/PARMETIS exist
 
-if [ -d "$1/PARMETIS" ]; then
+if [ -f "$1/PARMETIS/include/parmetis.h" ]; then
   echo "PARMETIS is already installed"
   exit 0
 fi