diff --git a/testsuite/Makefile.am b/testsuite/Makefile.am
index 5be988a1042306a2ece0fb7c60e13161558f4078..8c6cd2bea8cd53ddd6d7a5f0144655a4392ef252 100644
--- a/testsuite/Makefile.am
+++ b/testsuite/Makefile.am
@@ -2,7 +2,7 @@ CFLAGS = -I$(top_srcdir) @CFLAGS@ -O0
 CPPFLAGS = @CPPFLAGS@
 
 TS_PROGS = aes-test arcfour-test blowfish-test cast128-test \
-	   des-test des3-test \
+	   des-test des3-test des-compat-test \
 	   md5-test md5-compat-test sha1-test \
 	   serpent-test twofish-test \
 	   cbc-test
@@ -12,13 +12,16 @@ noinst_PROGRAMS = $(TS_PROGS)
 LDADD = testutils.o ../libnettle.a
 EXTRA_DIST = $(SOURCES:.c=.m4) testutils.c testutils.h run-tests
 
-# M4FLAGS = -P -s
-M4FLAGS = -P
+des-compat-test.c:
+	true
+
+M4FLAGS = -P -s
+# M4FLAGS = -P
 %.c: macros.m4 %.m4
 	$(M4) $(M4FLAGS) $^ > $@T
 	test -s $@T && mv -f $@T $@
 
-.PNONY: check run-tests
+.PHONY: check run-tests
 
 check: run-tests