2 files changed, 2 insertions, 2 deletions
diff --git a/engines/director/lingo/lingo-gr.cpp b/engines/director/lingo/lingo-gr.cpp
index 7bb13adde0..f92e030c88 100644
--- a/engines/director/lingo/lingo-gr.cpp
+++ b/engines/director/lingo/lingo-gr.cpp
@@ -225,7 +225,7 @@ extern int yylex();
 extern int yyparse();
 
 using namespace Director;
-void yyerror(char *s) {
+void yyerror(const char *s) {
 	g_lingo->_hadError = true;
 	warning("%s at line %d col %d", s, g_lingo->_linenumber, g_lingo->_colnumber);
 }
diff --git a/engines/director/lingo/lingo-gr.y b/engines/director/lingo/lingo-gr.y
index a4bc6195d9..9077f44876 100644
--- a/engines/director/lingo/lingo-gr.y
+++ b/engines/director/lingo/lingo-gr.y
@@ -58,7 +58,7 @@ extern int yylex();
 extern int yyparse();
 
 using namespace Director;
-void yyerror(char *s) {
+void yyerror(const char *s) {
 	g_lingo->_hadError = true;
 	warning("%s at line %d col %d", s, g_lingo->_linenumber, g_lingo->_colnumber);
 }