diff --git a/install.sh b/install.sh
index 8351a43..d7b7859 100755
--- a/install.sh
+++ b/install.sh
@@ -200,8 +200,10 @@
 
 function minindn {
     if [[ updated != true ]]; then
-        $update
-        updated="true"
+        if [ ! -d "build" ]; then
+            $update
+            updated="true"
+        fi
     fi
 
     if [[ $pysetup != true ]]; then