diff --git a/celestia/po/Makefile.in.in b/celestia/po/Makefile.in.in
index 5b7a5d5..8917cc1 100644
--- a/celestia/po/Makefile.in.in
+++ b/celestia/po/Makefile.in.in
@@ -31,7 +31,7 @@ gettextsrcdir = $(datadir)/gettext/po
 INSTALL = @INSTALL@
 INSTALL_DATA = @INSTALL_DATA@
 mkinstalldirs = $(SHELL) @install_sh@ -d
-mkdir_p = @mkdir_p@
+mkdir_p = @MKDIR_P@
 
 GMSGFMT_ = @GMSGFMT@
 GMSGFMT_no = @GMSGFMT@
diff --git a/celestia/po2/Makefile.in.in b/celestia/po2/Makefile.in.in
index 5b7a5d5..8917cc1 100644
--- a/celestia/po2/Makefile.in.in
+++ b/celestia/po2/Makefile.in.in
@@ -31,7 +31,7 @@ gettextsrcdir = $(datadir)/gettext/po
 INSTALL = @INSTALL@
 INSTALL_DATA = @INSTALL_DATA@
 mkinstalldirs = $(SHELL) @install_sh@ -d
-mkdir_p = @mkdir_p@
+mkdir_p = @MKDIR_P@
 
 GMSGFMT_ = @GMSGFMT@
 GMSGFMT_no = @GMSGFMT@