diff --git a/configure b/configure
index 923f672..f859cc6 100755
--- a/configure
+++ b/configure
@@ -1,9 +1,16 @@
 #!/bin/sh
 
-echo -n "Use interactive mode? [Y/n]: "; read answer
-if [ "$answer" = "Y" -o "$answer" = "y" -o "$answer" = "" ]
-   then NON_INTERACTIVE=0;
-       else NON_INTERACTIVE=1;
+if [ "$NON_INTERACTIVE" = 1 ]
+then
+	echo "Using non-interactive installation, if you want interactive mode"
+	echo "unset NON_INTERACTIVE environment variable prior running configure"
+	echo "by e.g.: unset NON_INTERACTIVE"
+else
+	echo -n "Use interactive mode? [Y/n]: "; read answer
+	if [ "$answer" = "Y" -o "$answer" = "y" -o "$answer" = "" ]
+	then NON_INTERACTIVE=0;
+	else NON_INTERACTIVE=1;
+	fi
 fi
 
 _sleep()