1diff --git a/smatch.h b/smatch.h
2index 36ae3497..ceb1907c 100644
3--- a/smatch.h
4+++ b/smatch.h
5@@ -1375,7 +1375,7 @@ bool buf_comp_has_bytes(struct expression *buf, struct expression *var);
6 bool buf_comp2_has_bytes(struct expression *buf_expr, struct expression *var);
7
8 /* smatch_untracked_param.c */
9-void mark_untracked(struct expression *expr, int param, const char *key, const char *value);
10+void mark_untracked(struct expression *expr, int param, char *key, char *value);
11 void add_untracked_param_hook(void (func)(struct expression *call, int param));
12 void add_lost_param_hook(void (func)(struct expression *call, int param));
13 void mark_all_params_untracked(int return_id, char *return_ranges, struct expression *expr);
14diff --git a/smatch_untracked_param.c b/smatch_untracked_param.c
15index 4bb3c244..d24958e7 100644
16--- a/smatch_untracked_param.c
17+++ b/smatch_untracked_param.c
18@@ -120,12 +120,12 @@ free:
19
20 }
21
22-void mark_untracked(struct expression *expr, int param, const char *key, const char *value)
23+void mark_untracked(struct expression *expr, int param, char *key, char *value)
24 {
25 mark_untracked_lost(expr, param, key, UNTRACKED_PARAM);
26 }
27
28-void mark_lost(struct expression *expr, int param, const char *key, const char *value)
29+void mark_lost(struct expression *expr, int param, char *key, char *value)
30 {
31 mark_untracked_lost(expr, param, key, LOST_PARAM);
32 }