diff --git a/include/lnm/http/router.h b/include/lnm/http/router.h
index 04956e4..f2ed321 100644
--- a/include/lnm/http/router.h
+++ b/include/lnm/http/router.h
@@ -49,7 +49,7 @@ lnm_http_route_err lnm_http_router_route(lnm_http_route_match *out,
                                          lnm_http_method method,
                                          const char *path);
 
-lnm_err lnm_http_route_match_get(lnm_http_route_match_segment **out,
-                                 lnm_http_route_match *match, const char *key);
+const lnm_http_route_match_segment *
+lnm_http_route_match_get(lnm_http_route_match *match, const char *key);
 
 #endif
diff --git a/src/http/lnm_http_router.c b/src/http/lnm_http_router.c
index 6f99431..3dcc857 100644
--- a/src/http/lnm_http_router.c
+++ b/src/http/lnm_http_router.c
@@ -56,9 +56,7 @@ void lnm_http_route_segment_trie_free(lnm_http_route_segment_trie *trie) {
   }
 
   for (size_t i = 0; i < 128; i++) {
-    if (trie->children[i] != NULL) {
-      lnm_http_route_segment_trie_free(trie->children[i]);
-    }
+    lnm_http_route_segment_trie_free(trie->children[i]);
   }
 
   free(trie);
@@ -94,8 +92,8 @@ lnm_err lnm_http_route_key_segment_insert(lnm_http_route *route,
 }
 
 static bool is_ascii(const char *s) {
-  while (*s != '0') {
-    if (*s > 127) {
+  while (*s != '\0') {
+    if (*s < 0) {
       return false;
     }
 
@@ -269,10 +267,10 @@ lnm_http_route_err lnm_http_router_route(lnm_http_route_match *out,
   return __lnm_http_router_route(out, router, method, path, 0, 0);
 }
 
-lnm_err lnm_http_route_match_get(lnm_http_route_match_segment **out,
-                                 lnm_http_route_match *match, const char *key) {
+const lnm_http_route_match_segment *
+lnm_http_route_match_get(lnm_http_route_match *match, const char *key) {
   if (match->route->key_segments == NULL) {
-    return lnm_err_not_found;
+    return NULL;
   }
 
   lnm_http_route_segment_trie *trie = match->route->key_segments;
@@ -281,17 +279,15 @@ lnm_err lnm_http_route_match_get(lnm_http_route_match_segment **out,
     trie = trie->children[(unsigned char)*key];
 
     if (trie == NULL) {
-      return lnm_err_not_found;
+      return NULL;
     }
 
     key++;
   }
 
   if (!trie->represents_segment) {
-    return lnm_err_not_found;
+    return NULL;
   }
 
-  *out = &match->key_segments[trie->index];
-
-  return lnm_err_ok;
+  return &match->key_segments[trie->index];
 }
diff --git a/test/routing.c b/test/routing.c
index 7cc7aea..788caaa 100644
--- a/test/routing.c
+++ b/test/routing.c
@@ -29,12 +29,12 @@ void test_routing_simple() {
   TEST_CHECK(match.key_segments[1].start == 15);
   TEST_CHECK(match.key_segments[1].len == 9);
 
-  lnm_http_route_match_segment *segment;
-  TEST_CHECK(lnm_http_route_match_get(&segment, &match, "second") == lnm_err_ok);
+  const lnm_http_route_match_segment *segment;
+  TEST_CHECK((segment = lnm_http_route_match_get(&match, "second")) != NULL);
   TEST_CHECK(segment->start == 15);
   TEST_CHECK(segment->len == 9);
-  TEST_CHECK(lnm_http_route_match_get(&segment, &match, "yuhh") == lnm_err_not_found);
-  TEST_CHECK(lnm_http_route_match_get(&segment, &match, "hello") == lnm_err_ok);
+  TEST_CHECK((segment = lnm_http_route_match_get(&match, "yuhh")) == NULL);
+  TEST_CHECK((segment = lnm_http_route_match_get(&match, "hello")) != NULL);
   TEST_CHECK(segment->start == 6);
   TEST_CHECK(segment->len == 8);
 }