diff --git a/am/documentation b/am/documentation
index 06ac7992735b750999c9fc68a44683e144818106..16aa0cb0739cc13cff7e7866ca68cdba66221431 100644
--- a/am/documentation
+++ b/am/documentation
@@ -51,7 +51,7 @@ doc-clean-documentation:
 
 install-documentation: $(DOCFILES) install-documentation-local
 	@$(NORMAL_INSTALL)
-	test -z "$(docdir)" || $(mkdir_p) "$(DESTDIR)$(docdir)"
+	test -z "$(docdir)" || $(MKDIR_P) "$(DESTDIR)$(docdir)"
 	@list='$(DOCFILES) $(DOCFILES_EXTRA)'; test -n "$(docdir)" || list=; \
 	for p in $$list; do \
 	  if test -f "$$p"; then d=; else d="$(srcdir)/"; fi; \
diff --git a/m4/dune_common.m4 b/m4/dune_common.m4
index 9a1ea23c76b6a493f039eb6f1822266e1abf940d..3729daf68b912353cd360af0aaba4b4a3adde740 100644
--- a/m4/dune_common.m4
+++ b/m4/dune_common.m4
@@ -14,8 +14,8 @@ AC_DEFUN([DUNE_COMMON_CHECKS],
   AC_REQUIRE([AC_PROG_AWK])
   AC_REQUIRE([ACX_LAPACK])
   AC_REQUIRE([AC_FC_WRAPPERS])
-  # defined $(mkdir_p), which is required during install
-  AC_REQUIRE([AM_PROG_MKDIR_P])
+  # defined $(MKDIR_P), which is required during install
+  AC_REQUIRE([AC_PROG_MKDIR_P])
 
   AC_REQUIRE([DUNE_CHECK_COMPILER])
   AC_REQUIRE([GXX0X])