diff --git a/src/asyncWebsocket/traceAsyncWebsocket.cpp b/src/asyncWebsocket/traceAsyncWebsocket.cpp
index 19ffbdf..bf28173 100644
--- a/src/asyncWebsocket/traceAsyncWebsocket.cpp
+++ b/src/asyncWebsocket/traceAsyncWebsocket.cpp
@@ -65,7 +65,7 @@ static void print(uint8_t severity, const char * buffer, int length)
     if (_lines_count < MAX_TRACE_LINES) {
         ++_lines_count;
     }
-    ++_modified;
+    _modified = _modified + 1;
 }
 
 static void trace_loop()
@@ -272,10 +272,10 @@ void trace_dump(uint8_t severity, const __FlashStringHelper * prefix, uint8_t *
     print(severity, buffer, idx);
 }
 
-void trace_forceupdate(void)
+void trace_forceupdate()
 {
 
-    ++_modified; // vynutime odeslani informaci
+    _modified = _modified + 1; // vynutime odeslani informaci
 }
 
 // EOF