1 files changed, 1 insertions, 1 deletions
diff --git a/proc.c b/proc.c
index a98bc4b471..63e2319114 100644
--- a/proc.c
+++ b/proc.c
@@ -401,7 +401,7 @@ bind_eval(int argc, VALUE *argv, VALUE bindval)
 static VALUE *
 get_local_variable_ptr(VALUE envval, ID lid)
 {
-    const rb_env_t *env;
+    rb_env_t *env;
 
     do {
 	const rb_iseq_t *iseq;