diff --git a/res/doc b/res/doc
index c61aac9..4c37883 100644
--- a/res/doc
+++ b/res/doc
@@ -35,7 +35,7 @@
 #                   dbg_msg        - the message
 #                   dbg_toast      - the message
 #                   kfmon          - the filename of the KFMon watched item to launch.
-#                                    This is actually the basename of the watch's filename as specified in its KFMon config.
+#                                    This is actually the basename of the watch's filename as specified in its KFMon config (i.e., the png).
 #                                    You can also check the output of the 'list' command via the kfmon-ipc tool.
 #                   nickel_setting - one of:
 #                                      invert      - toggles FeatureSettings.InvertScreen (all versions)
diff --git a/src/kfmon.c b/src/kfmon.c
index ca283e2..c2d9c81 100644
--- a/src/kfmon.c
+++ b/src/kfmon.c
@@ -455,7 +455,7 @@ nm_action_result_t* nm_kfmon_return_handler(int status, char **err_out) {
         } else if (status == KFMON_IPC_ERR_INVALID_ID) {
             NM_RETURN_ERR("Requested to start an invalid watch index");
         } else if (status == KFMON_IPC_ERR_INVALID_NAME) {
-            NM_RETURN_ERR("Requested to trigger an invalid watch filename (this is the image filename with, not the config) (maybe you forget the extension?)");
+            NM_RETURN_ERR("Requested to trigger an invalid watch filename (expected the basename of the image trigger)");
         } else if (status == KFMON_IPC_WARN_ALREADY_RUNNING) {
             NM_RETURN_ERR("Requested watch is already running");
         } else if (status == KFMON_IPC_WARN_SPAWN_BLOCKED) {