diff --git a/src/OpenStreetMap-esp32.cpp b/src/OpenStreetMap-esp32.cpp
index 4c3538e..20113b6 100644
--- a/src/OpenStreetMap-esp32.cpp
+++ b/src/OpenStreetMap-esp32.cpp
@@ -143,7 +143,7 @@ void OpenStreetMap::freeTilesCache()
     tilesCache.clear();
 }
 
-bool OpenStreetMap::resizeTilesCache(uint8_t numberOfTiles)
+bool OpenStreetMap::resizeTilesCache(uint16_t numberOfTiles)
 {
     if (tilesCache.size() == numberOfTiles)
         return true;
diff --git a/src/OpenStreetMap-esp32.h b/src/OpenStreetMap-esp32.h
index 9f3fff6..909c165 100644
--- a/src/OpenStreetMap-esp32.h
+++ b/src/OpenStreetMap-esp32.h
@@ -55,7 +55,7 @@ class OpenStreetMap
     ~OpenStreetMap();
 
     void setSize(uint16_t w, uint16_t h);
-    bool resizeTilesCache(uint8_t numberOfTiles);
+    bool resizeTilesCache(uint16_t numberOfTiles);
     void freeTilesCache();
     bool fetchMap(LGFX_Sprite &sprite, double longitude, double latitude, uint8_t zoom);