diff --git a/Nextion.cpp b/Nextion.cpp
index 78c2421..5d637ae 100644
--- a/Nextion.cpp
+++ b/Nextion.cpp
@@ -686,7 +686,7 @@ void CNextion::writePOCSAGInt(uint32_t ric, const std::string& message)
 		sendCommandAction(6U);
 	}
 
-	char text[80U];
+	char text[200U];
 	::sprintf(text, "dim=%u", m_brightness);
 	sendCommand(text);