1 files changed, 8 insertions, 4 deletions
diff --git a/tests/acloca18.test b/tests/acloca18.test
index 276e5ba7b..c38fac485 100755
--- a/tests/acloca18.test
+++ b/tests/acloca18.test
@@ -106,9 +106,13 @@ AC_DEFUN([AM_MACRO1], [echo macro1d >> foo])
 AC_DEFUN([AM_MACRO2], [echo macro2d >> foo])
 EOF
 rm -f foo
-$ACLOCAL --diff=diff >output 2>stderr
-cat stderr
-cat output
-grep '#serial 456' output
+$ACLOCAL --diff=diff >stdout 2>stderr || {
+  cat stderr >&2
+  cat stdout
+  Exit 1
+}
+cat stderr >&2
+cat stdout
+grep '#serial 456' stdout
 test ! -f 4/m1.m4
 grep 'installing.*4/m1.m4' stderr