diff --git a/src/debug.h b/src/debug.h
index 8cc1efc..65f19e1 100644
--- a/src/debug.h
+++ b/src/debug.h
@@ -7,6 +7,6 @@
     #define HEAP_DEBUG_MESSAGE(location) 
 #endif
 
-inline void printHeapDebugData(String location){
+inline void printHeapDebugData(const char *location){
     Serial.println("Heap: " + String(ESP.getMinFreeHeap()/1024) + "\t" + String(ESP.getFreeHeap()/1024) + "\t" + String(ESP.getMaxAllocHeap()/1024) + "\t" + location);
 }
\ No newline at end of file