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-rw-r--r--engines/glk/adrift/scgamest.cpp2
-rw-r--r--engines/glk/adrift/scinterf.cpp2
2 files changed, 2 insertions, 2 deletions
diff --git a/engines/glk/adrift/scgamest.cpp b/engines/glk/adrift/scgamest.cpp
index ab92b413de..b928258dfe 100644
--- a/engines/glk/adrift/scgamest.cpp
+++ b/engines/glk/adrift/scgamest.cpp
@@ -793,7 +793,7 @@ sc_gameref_t gs_create(sc_var_setref_t vars, sc_prop_setref_t bundle, sc_filterr
*
* Return TRUE if pointer is a valid game, FALSE otherwise.
*/
-sc_bool gs_is_game_valid(sc_gameref_t game) {
+sc_bool gs_is_game_valid(const sc_gameref_t game) {
return game && game->magic == GAME_MAGIC;
}
diff --git a/engines/glk/adrift/scinterf.cpp b/engines/glk/adrift/scinterf.cpp
index c01d99a511..a4cf650691 100644
--- a/engines/glk/adrift/scinterf.cpp
+++ b/engines/glk/adrift/scinterf.cpp
@@ -372,7 +372,7 @@ sc_game sc_game_from_callback(sc_int(*callback)(void *, sc_byte *, sc_int), void
* Common function to verify that the game passed in to functions below
* is a valid game. Returns TRUE on game error, FALSE if okay.
*/
-static sc_bool if_game_error(sc_gameref_t game, const sc_char *function_name) {
+static sc_bool if_game_error(const sc_gameref_t game, const sc_char *function_name) {
/* Check for invalid game -- null pointer or bad magic. */
if (!gs_is_game_valid(game)) {
if (game)