diff --git a/src/libsystemd-network/network-internal.c b/src/libsystemd-network/network-internal.c
index 046b0f9393..bfaa75880b 100644
--- a/src/libsystemd-network/network-internal.c
+++ b/src/libsystemd-network/network-internal.c
@@ -27,7 +27,7 @@
 #include "condition.h"
 #include "conf-parser.h"
 #include "dhcp-lease-internal.h"
-#include "ether-addr-util.c"
+#include "ether-addr-util.h"
 #include "hexdecoct.h"
 #include "log.h"
 #include "network-internal.h"