diff --git a/tests/fmt/Makefile.am b/tests/fmt/Makefile.am
index cec419926..9663d7b0c 100644
--- a/tests/fmt/Makefile.am
+++ b/tests/fmt/Makefile.am
@@ -9,4 +9,4 @@ TESTS_ENVIRONMENT = \
   PATH=`pwd`/../../src:$$PATH \
   PROG=fmt
 
-TESTS = basic
+TESTS = basic long-line