diff --git a/include/common/http.h b/include/common/http.h
index 2f7486ea4..b0befa5f1 100644
--- a/include/common/http.h
+++ b/include/common/http.h
@@ -136,7 +136,7 @@ extern const char *HTTP_407_fmt;
 
 int init_http(char **err);
 enum http_meth_t find_http_meth(const char *str, const int len);
-const int http_get_status_idx(unsigned int status);
+int http_get_status_idx(unsigned int status);
 const char *http_get_reason(unsigned int status);
 struct ist http_get_path(const struct ist uri);
 int http_header_match2(const char *hdr, const char *end,
diff --git a/include/common/htx.h b/include/common/htx.h
index 8d639a301..9cbc95300 100644
--- a/include/common/htx.h
+++ b/include/common/htx.h
@@ -229,48 +229,48 @@ int htx_trailer_to_h1(const struct ist tlr, struct buffer *chk);
 #define HTX_SL_RES_CPTR(sl) HTX_SL_P2_PTR(sl)
 #define HTX_SL_RES_RPTR(sl) HTX_SL_P3_PTR(sl)
 
-static inline const struct ist htx_sl_p1(const struct htx_sl *sl)
+static inline struct ist htx_sl_p1(const struct htx_sl *sl)
 {
 	return ist2(HTX_SL_P1_PTR(sl), HTX_SL_P1_LEN(sl));
 }
 
-static inline const struct ist htx_sl_p2(const struct htx_sl *sl)
+static inline struct ist htx_sl_p2(const struct htx_sl *sl)
 {
 	return ist2(HTX_SL_P2_PTR(sl), HTX_SL_P2_LEN(sl));
 }
 
-static inline const struct ist htx_sl_p3(const struct htx_sl *sl)
+static inline struct ist htx_sl_p3(const struct htx_sl *sl)
 {
 	return ist2(HTX_SL_P3_PTR(sl), HTX_SL_P3_LEN(sl));
 }
 
-static inline const struct ist htx_sl_req_meth(const struct htx_sl *sl)
+static inline struct ist htx_sl_req_meth(const struct htx_sl *sl)
 {
 	return htx_sl_p1(sl);
 }
 
-static inline const struct ist htx_sl_req_uri(const struct htx_sl *sl)
+static inline struct ist htx_sl_req_uri(const struct htx_sl *sl)
 {
 	return htx_sl_p2(sl);
 }
 
-static inline const struct ist htx_sl_req_vsn(const struct htx_sl *sl)
+static inline struct ist htx_sl_req_vsn(const struct htx_sl *sl)
 {
 	return htx_sl_p3(sl);
 }
 
 
-static inline const struct ist htx_sl_res_vsn(const struct htx_sl *sl)
+static inline struct ist htx_sl_res_vsn(const struct htx_sl *sl)
 {
 	return htx_sl_p1(sl);
 }
 
-static inline const struct ist htx_sl_res_code(const struct htx_sl *sl)
+static inline struct ist htx_sl_res_code(const struct htx_sl *sl)
 {
 	return htx_sl_p2(sl);
 }
 
-static inline const struct ist htx_sl_res_reason(const struct htx_sl *sl)
+static inline struct ist htx_sl_res_reason(const struct htx_sl *sl)
 {
 	return htx_sl_p3(sl);
 }
diff --git a/src/http.c b/src/http.c
index bd8f96f57..7c3f6bbcf 100644
--- a/src/http.c
+++ b/src/http.c
@@ -362,7 +362,7 @@ enum http_meth_t find_http_meth(const char *str, const int len)
 /* This function returns HTTP_ERR_<num> (enum) matching http status code.
  * Returned value should match codes from http_err_codes.
  */
-const int http_get_status_idx(unsigned int status)
+int http_get_status_idx(unsigned int status)
 {
 	switch (status) {
 	case 200: return HTTP_ERR_200;