diff --git a/lib/tests/Makefile.am b/lib/tests/Makefile.am
index 24812883..c722a272 100644
--- a/lib/tests/Makefile.am
+++ b/lib/tests/Makefile.am
@@ -155,5 +155,6 @@ EXTRA_DIST=						\
 	testdir4/encrypted!2,S				\
 	testdir4/multimime!2,FS				\
 	testdir4/signed!2,S				\
+	testdir4/signed-bad!2,S				\
 	testdir4/signed-encrypted!2,S			\
 	testdir4/special!2,Sabc
diff --git a/mu/Makefile.am b/mu/Makefile.am
index 4cbdf9f7..5ff1e9dc 100644
--- a/mu/Makefile.am
+++ b/mu/Makefile.am
@@ -53,7 +53,7 @@ BUILT_SOURCES=				\
 	mu-help-strings.h
 
 mu-help-strings.h: mu-help-strings.txt mu-help-strings.awk
-	$(AWK) -f mu-help-strings.awk < $< > $@
+	$(AWK) -f ${top_srcdir}/mu/mu-help-strings.awk < $< > $@
 
 mu_LDADD=				\
 	${top_builddir}/lib/libmu.la    \
@@ -62,3 +62,5 @@ mu_LDADD=				\
 EXTRA_DIST=				\
 	mu-help-strings.awk		\
 	mu-help-strings.txt
+
+CLEANFILES=$(BUILT_SOURCES)