diff --git a/mongoose.c b/mongoose.c
index ae6613ca..f69f4894 100644
--- a/mongoose.c
+++ b/mongoose.c
@@ -592,7 +592,8 @@ const char *mg_version(void) {
   return MONGOOSE_VERSION;
 }
 
-const struct mg_request_info *mg_get_request_info(struct mg_connection *conn) {
+const struct mg_request_info *
+mg_get_request_info(const struct mg_connection *conn) {
   return &conn->request_info;
 }
 
diff --git a/mongoose.h b/mongoose.h
index c5e6e4ba..3b0c67a6 100644
--- a/mongoose.h
+++ b/mongoose.h
@@ -153,7 +153,7 @@ int mg_modify_passwords_file(const char *passwords_file_name,
 
 // Return mg_request_info structure associated with the request.
 // Always succeeds.
-const struct mg_request_info *mg_get_request_info(struct mg_connection *);
+const struct mg_request_info *mg_get_request_info(const struct mg_connection *);
 
 
 // Send data to the client.