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-rw-r--r--ext/ripper/eventids2.c4
1 files changed, 2 insertions, 2 deletions
diff --git a/ext/ripper/eventids2.c b/ext/ripper/eventids2.c
index 0c04583b98..629381448a 100644
--- a/ext/ripper/eventids2.c
+++ b/ext/ripper/eventids2.c
@@ -112,7 +112,7 @@ ripper_init_eventids2(VALUE self)
ripper_init_eventids2_table(self);
}
-static struct token_assoc {
+static const struct token_assoc {
int token;
ID *id;
} token_to_eventid[] = {
@@ -264,7 +264,7 @@ static struct token_assoc {
static ID
ripper_token2eventid(int tok)
{
- struct token_assoc *a;
+ const struct token_assoc *a;
for (a = token_to_eventid; a->id != NULL; a++) {
if (a->token == tok)