diff --git a/Makefile.am b/Makefile.am
index 1883ab5f..7ff989d6 100644
--- a/Makefile.am
+++ b/Makefile.am
@@ -22,7 +22,7 @@ pkgconfig_DATA = osmo-sgsn.pc
 BUILT_SOURCES = $(top_srcdir)/.version
 EXTRA_DIST = git-version-gen osmoappdesc.py .version
 
-DISTCHECK_CONFIGURE_FLAGS = \
+AM_DISTCHECK_CONFIGURE_FLAGS = \
 	--with-systemdsystemunitdir=$$dc_install_base/$(systemdsystemunitdir)
 
 @RELMAKE@