diff --git a/configure.ac b/configure.ac
index 690de2a720..b5666a56dc 100644
--- a/configure.ac
+++ b/configure.ac
@@ -2915,7 +2915,7 @@ if test "$with_linux" = "yes"; then
         fi
     done
     case $libnl_ldd:${LIBNL_CFLAGS+set} in
-        *libnl.so.1*:) ;;
+        *libnl.so.1*) ;;
         *)
         PKG_CHECK_MODULES([LIBNL], [libnl-3.0], [
             have_libnl=yes