diff --git a/admin/detect-autoconf.sh b/admin/detect-autoconf.sh
index 94f91e9845375fa09c15bb89cbe08b9eaa6e5ab2..27a9f5d23971c200c722116342e9901c50d20501 100644
--- a/admin/detect-autoconf.sh
+++ b/admin/detect-autoconf.sh
@@ -6,6 +6,7 @@ AUTOHEADER="autoheader"
 AUTOM4TE="autom4te"
 AUTOMAKE="automake"
 ACLOCAL="aclocal"
+UNSERMAKE="no"
 
 # Please add higher versions first. The last version number is the minimum
 # needed to compile KDE. Do not forget to include the name/version #