diff --git a/Makefile.am b/Makefile.am
index 3cd73fc05..750176536 100644
--- a/Makefile.am
+++ b/Makefile.am
@@ -109,7 +109,7 @@ dflt_cppflags = -std=gnu11
 # See https://www.gnu.org/software/autoconf/manual/autoconf-2.63/html_node/Installation-Directory-Variables.html
 #
 # With meson-only, they could just be set via config.h.meson
-config-extra.h: Makefile
+config-extra.h: config.h
 	$(AM_V_GEN) \
 	echo "/* Generated by Makefile.am */"                    >$@ && \
 	echo "#define BINDIR            \"$(bindir)\""          >>$@ && \