diff --git a/configure.ac b/configure.ac
index ceb1d18..0e1c3b8 100644
--- a/configure.ac
+++ b/configure.ac
@@ -3,6 +3,7 @@
 AC_CONFIG_AUX_DIR([.])
 AM_INIT_AUTOMAKE
 AC_CONFIG_HEADERS([include/config.h])
+AC_CONFIG_MACRO_DIR([m4])
 AC_CONFIG_FILES([ \
     include/mk/config.mk \
     include/mk/features.mk \
diff --git a/include/mk/automake.mk b/include/mk/automake.mk
index 309947c..252a44d 100644
--- a/include/mk/automake.mk
+++ b/include/mk/automake.mk
@@ -42,7 +42,7 @@
 aclocal: aclocal.m4
 
 aclocal.m4: $(wildcard m4/*.m4) m4/ltp-version.m4
-	$(ACLOCAL) -I m4
+	$(ACLOCAL)
 
 .PHONY: autoconf
 autoconf: configure