diff --git a/Makefile b/Makefile
index 70499e079a9..b55b5bcbe04 100644
--- a/Makefile
+++ b/Makefile
@@ -205,8 +205,8 @@ SYSFS =	$(PWD)/libsysfs/sysfs_bus.o	\
 
 OBJS =	udev_lib.o	\
 	udev_config.o	\
-	udev-add.o	\
-	udev-remove.o	\
+	udev_add.o	\
+	udev_remove.o	\
 	udevdb.o	\
 	namedev.o	\
 	namedev_parse.o	\
diff --git a/udev-add.c b/udev_add.c
similarity index 100%
rename from udev-add.c
rename to udev_add.c
diff --git a/udev-remove.c b/udev_remove.c
similarity index 100%
rename from udev-remove.c
rename to udev_remove.c