diff --git a/udev/80-libinput-device-groups.rules.in b/udev/80-libinput-device-groups.rules.in
index 1a26f783..f8331530 100644
--- a/udev/80-libinput-device-groups.rules.in
+++ b/udev/80-libinput-device-groups.rules.in
@@ -1,9 +1,6 @@
 ACTION!="add|change", GOTO="libinput_device_group_end"
 KERNEL!="event[0-9]*", GOTO="libinput_device_group_end"
 
-ATTRS{phys}=="?*", \
-	ENV{LIBINPUT_DEVICE_GROUP}=="", \
-	PROGRAM="@UDEV_TEST_PATH@libinput-device-group %S%p", \
-	ENV{LIBINPUT_DEVICE_GROUP}="%c"
+ATTRS{phys}=="?*", IMPORT{program}+="@UDEV_TEST_PATH@libinput-device-group %S%p"
 
 LABEL="libinput_device_group_end"
diff --git a/udev/libinput-device-group.c b/udev/libinput-device-group.c
index 46348e00..65d22ec3 100644
--- a/udev/libinput-device-group.c
+++ b/udev/libinput-device-group.c
@@ -247,7 +247,7 @@ int main(int argc, char **argv)
 	if (str && str > strrchr(group, '-'))
 		*str = '\0';
 
-	printf("%s\n", group);
+	printf("LIBINPUT_DEVICE_GROUP=%s\n", group);
 
 	rc = 0;
 out: