diff --git a/Makefile.am b/Makefile.am
index 7ae9648838..5299a8332e 100644
--- a/Makefile.am
+++ b/Makefile.am
@@ -2018,7 +2018,6 @@ shared_systemd_libnm_systemd_shared_la_SOURCES = \
 	shared/systemd/sd-adapt-shared/mkdir.h \
 	shared/systemd/sd-adapt-shared/namespace-util.h \
 	shared/systemd/sd-adapt-shared/nm-sd-adapt-shared.h \
-	shared/systemd/sd-adapt-shared/nm-sd-adapt-shared.h \
 	shared/systemd/sd-adapt-shared/nulstr-util.h \
 	shared/systemd/sd-adapt-shared/raw-clone.h \
 	shared/systemd/sd-adapt-shared/rlimit-util.h \