diff --git a/OLEDDisplayUi.cpp b/OLEDDisplayUi.cpp
index 3fb4326a4d6ead0584b61e2d6187b1e8b3241575..163c2e906935eb90475e5ad107ff919a18a40b50 100644
--- a/OLEDDisplayUi.cpp
+++ b/OLEDDisplayUi.cpp
@@ -361,7 +361,7 @@ void OLEDDisplayUi::drawIndicator() {
     }
 
     uint16_t frameStartPos = (12 * frameCount / 2);
-    const char *image;
+    const unsigned char *image;
     uint16_t x,y;
     for (byte i = 0; i < this->frameCount; i++) {