diff --git a/Makefile.am b/Makefile.am
index eafc8ca54..449f77474 100644
--- a/Makefile.am
+++ b/Makefile.am
@@ -1212,6 +1212,7 @@ src_libsystemd_nm_la_SOURCES = \
 	src/systemd/sd-adapt/def.h \
 	src/systemd/sd-adapt/dirent-util.h \
 	src/systemd/sd-adapt/env-util.h \
+	src/systemd/sd-adapt/errno-list.h \
 	src/systemd/sd-adapt/format-util.h \
 	src/systemd/sd-adapt/gunicode.h \
 	src/systemd/sd-adapt/ioprio.h \