diff --git a/src/DataLoggerModule.cpp b/src/DataLoggerModule.cpp
index 80f7f1e..abb0a58 100644
--- a/src/DataLoggerModule.cpp
+++ b/src/DataLoggerModule.cpp
@@ -14,7 +14,7 @@ void DataLoggerModule::sendSettings(void(*function)(void))
 void DataLoggerModule::createFile(String FileName)
 {
 	columnNumber=0;
-	Dabble.sendModuleFrame(DATALOGGER_ID,0,FILENAME,1,new FunctionArg(FileName.length(),&FileName[0]));
+	Dabble.sendModuleFrame(DATALOGGER_ID,0,FILENAME,1,new FunctionArg(FileName.length(),(byte*)(&FileName[0])));
 }
 
 void DataLoggerModule::createColumn(String colName)
@@ -49,7 +49,7 @@ void DataLoggerModule::createColumn(String colName)
 	//end
 	uint8_t a = columnNumber+1;
 	String sendColumnName = columnName[columnNumber];
-    Dabble.sendModuleFrame(DATALOGGER_ID,0,COLUMNNAME,2,new FunctionArg(1,&a),new FunctionArg(sendColumnName.length(),&sendColumnName[0]));
+    Dabble.sendModuleFrame(DATALOGGER_ID,0,COLUMNNAME,2,new FunctionArg(1,&a),new FunctionArg(sendColumnName.length(),(byte*)(&sendColumnName[0])));
 	columnNumber++;
 }
 
@@ -114,7 +114,7 @@ void DataLoggerModule::send(String col,String data)
 		return;
 	}
 	
-		Dabble.sendModuleFrame(DATALOGGER_ID,0,DATATYPE_CHAR,2,new FunctionArg(1,&columnFlag),new FunctionArg(data.length(),&data[0]));
+		Dabble.sendModuleFrame(DATALOGGER_ID,0,DATATYPE_CHAR,2,new FunctionArg(1,&columnFlag),new FunctionArg(data.length(),(byte*)(&data[0])));
 	
 }