diff --git a/src/main.c b/src/main.c
index 75fd301..811f549 100644
--- a/src/main.c
+++ b/src/main.c
@@ -318,7 +318,7 @@ struct capture_completed_args {
 static bool
 capture_completed(struct capture_completed_args *args)
 {
-        snprintf(last_path, sizeof(last_path), args->fname);
+        snprintf(last_path, sizeof(last_path), "%s", args->fname);
 
         gtk_image_set_from_paintable(GTK_IMAGE(thumb_last),
                                      GDK_PAINTABLE(args->thumb));
diff --git a/src/process_pipeline.c b/src/process_pipeline.c
index a913129..7113a2f 100644
--- a/src/process_pipeline.c
+++ b/src/process_pipeline.c
@@ -162,7 +162,7 @@ static void setup_capture(void)
 		exit(EXIT_FAILURE);
 	}
 
-	snprintf(burst_dir, sizeof(burst_dir), tempdir);
+	snprintf(burst_dir, sizeof(burst_dir), "%s", tempdir);
 }
 
 static void