diff --git a/testsuite/symbols-test b/testsuite/symbols-test
index d6bd4840b3244c43ca19cb04d49301c1ceb7a098..a49e694301e7774186a26f73e216f0f419004f5a 100755
--- a/testsuite/symbols-test
+++ b/testsuite/symbols-test
@@ -6,7 +6,7 @@ if [ -z "$srcdir" ] ; then
   srcdir=`pwd`
 fi
 
-nm ../libnettle.a | grep ' [DRT] ' | egrep -v ' _?nettle_|memxor' \
+nm ../libnettle.a | grep ' [DRT] ' | egrep -v ' \.?(_?nettle_|memxor)' \
     | sort -k3 > test1.out
 
 if [ -s test1.out ] ; then