diff --git a/bin/tests/system/ifconfig.sh b/bin/tests/system/ifconfig.sh
index e8232f87bd..c6b412a8f2 100755
--- a/bin/tests/system/ifconfig.sh
+++ b/bin/tests/system/ifconfig.sh
@@ -21,7 +21,7 @@
 #
 
 config_guess=""
-for f in ./config.guess ../../../config.guess
+for f in ./config.guess ../../../config.guess /usr/share/automake*/config.guess
 do
 	if test -f $f
 	then