diff --git a/src/button/button-png.c b/src/button/button-png.c
index f094f1a9..e053ad47 100644
--- a/src/button/button-png.c
+++ b/src/button/button-png.c
@@ -49,6 +49,9 @@ button_png_load(const char *button_name, struct lab_data_buffer **buffer)
 		wlr_buffer_drop(&(*buffer)->base);
 		*buffer = NULL;
 	}
+	if (!button_name || !*button_name) {
+		return;
+	}
 
 	char path[4096] = { 0 };
 	button_filename(button_name, path, sizeof(path));
diff --git a/src/button/button-svg.c b/src/button/button-svg.c
index 17882c0d..2846e5b1 100644
--- a/src/button/button-svg.c
+++ b/src/button/button-svg.c
@@ -22,6 +22,9 @@ button_svg_load(const char *button_name, struct lab_data_buffer **buffer,
 		wlr_buffer_drop(&(*buffer)->base);
 		*buffer = NULL;
 	}
+	if (!button_name || !*button_name) {
+		return;
+	}
 
 	char filename[4096] = { 0 };
 	button_filename(button_name, filename, sizeof(filename));
diff --git a/src/button/button-xbm.c b/src/button/button-xbm.c
index 908cacaa..fe7460fa 100644
--- a/src/button/button-xbm.c
+++ b/src/button/button-xbm.c
@@ -279,6 +279,9 @@ button_xbm_load(const char *button_name, struct lab_data_buffer **buffer,
 		wlr_buffer_drop(&(*buffer)->base);
 		*buffer = NULL;
 	}
+	if (!button_name || !*button_name) {
+		return;
+	}
 	color = argb32(rgba);
 
 	/* Read file into memory as it's easier to tokenize that way */