diff --git a/engines/agos/string.cpp b/engines/agos/string.cpp
index 0663e465d22..3025b007277 100644
--- a/engines/agos/string.cpp
+++ b/engines/agos/string.cpp
@@ -166,15 +166,15 @@ const byte *AGOSEngine::getLocalStringByID(uint16 stringId) {
 		// WORKAROUND bug for Simon 1 (only in CD-ROM versions) missing subtitles text when using the map at the dungeon, strings taken from Floppy versions
 		if (stringId == 36034) {
 			if (_language == Common::HE_ISR)
-				return (byte *)"@PI L@ IKEL LV@Z NK@O KXBR.";
+				return (const byte *)"@PI L@ IKEL LV@Z NK@O KXBR.";
 			if (_language == Common::ES_ESP)
-				return (byte *)"Ahora no puedo salir de aqu<.";
+				return (const byte *)"Ahora no puedo salir de aqu<.";
 			if (_language == Common::IT_ITA)
-				return (byte *)"Non posso uscire per il momento.";
+				return (const byte *)"Non posso uscire per il momento.";
 		}
 
 		if (stringId == 36035 && _language == Common::FR_FRA)
-			return (byte *)"Je ne peux pas sortir de l; pour l'instant.";
+			return (const byte *)"Je ne peux pas sortir de l; pour l'instant.";
 	}
 	return localString;
 }