diff --git a/src/node.c b/src/node.c
index 19262b2..86d6aa9 100644
--- a/src/node.c
+++ b/src/node.c
@@ -501,6 +501,10 @@ node * r3_tree_insert_pathl_(node *tree, const char *path, int path_len, route *
         // there are two more slugs, we should break them into several parts
         char *errstr = NULL;
         int slug_cnt = slug_count(path, path_len, &errstr);
+        if (errstr) {
+            printf("Can not insert path '%s'. Error: %s\n", path, errstr);
+            return NULL;
+        }
 
         if ( slug_cnt > 1 ) {
             int   slug_len;
diff --git a/src/slug.c b/src/slug.c
index 54b4b30..5428a2a 100644
--- a/src/slug.c
+++ b/src/slug.c
@@ -137,7 +137,7 @@ r3_slug_t * r3_slug_parse(char *needle, int needle_len, char *offset, char **err
 
     if (state > 0) {
         if (errstr) {
-            asprintf(errstr, "incomplete slug pattern. PATH (%d): '%s', OFFSET: %ld, STATE: %d", needle_len, needle, p - needle, state);
+            asprintf(errstr, "Incomplete slug pattern. PATH (%d): '%s', OFFSET: %ld, STATE: %d", needle_len, needle, p - needle, state);
         }
         return NULL;
     }
@@ -145,45 +145,6 @@ r3_slug_t * r3_slug_parse(char *needle, int needle_len, char *offset, char **err
 }
 
 
-/*
-int slug_count2(char * needle, int needle_len, char **errstr) {
-    // r3_slug_t * s = r3_slug_parse(needle, needle_len, needle);
-
-
-    int cnt = 0;
-    int state = 0;
-    char * p = (char*) needle;
-    while( (p-needle) < len) {
-
-        if (*p == '\\' ) {
-            p++; p++;
-        }
-
-        if (state == 1 && *p == '}') {
-            cnt++;
-        }
-        if ( *p == '{' ) {
-            state++;
-        } else if ( *p == '}' ) {
-            state--;
-        }
-        p++;
-    };
-    info("FOUND PATTERN: '%s' (%d), STATE: %d\n", needle, len, state);
-    if (state != 0) {
-        if (errstr) {
-            asprintf(errstr, "incomplete slug pattern. PATTERN (%d): '%s', OFFSET: %ld, STATE: %d", len, needle, p - needle, state);
-        }
-        return 0;
-    }
-    return cnt;
-}
-*/
-
-
-
-
-
 /**
  * provide a quick way to count slugs, simply search for '{'
  */
@@ -211,7 +172,7 @@ int slug_count(const char * needle, int len, char **errstr) {
     info("FOUND PATTERN: '%s' (%d), STATE: %d\n", needle, len, state);
     if (state != 0) {
         if (errstr) {
-            asprintf(errstr, "incomplete slug pattern. PATTERN (%d): '%s', OFFSET: %ld, STATE: %d", len, needle, p - needle, state);
+            asprintf(errstr, "Incomplete slug pattern. PATTERN (%d): '%s', OFFSET: %ld, STATE: %d", len, needle, p - needle, state);
         }
         return 0;
     }
diff --git a/tests/check_tree.c b/tests/check_tree.c
index 61b0daf..55141c1 100644
--- a/tests/check_tree.c
+++ b/tests/check_tree.c
@@ -98,6 +98,27 @@ START_TEST (test_compile)
 }
 END_TEST
 
+
+START_TEST (test_incomplete_slug_path)
+{
+    node * n = r3_tree_create(10);
+
+    // r3_tree_insert_path(n, "/foo-{user}-{id}", NULL, NULL);
+    r3_tree_insert_path(n, "/post/{handle", NULL);
+    r3_tree_insert_path(n, "/post/{handle:\\", NULL);
+    r3_tree_insert_path(n, "/post/{handle:\\d", NULL);
+    r3_tree_insert_path(n, "/post/{handle:\\d{", NULL);
+    r3_tree_insert_path(n, "/post/{handle:\\d{3", NULL);
+    r3_tree_insert_path(n, "/post/{handle:\\d{3}", NULL);
+    r3_tree_insert_path(n, "/post/{handle:\\d{3}}/{", NULL);
+    r3_tree_insert_path(n, "/post/{handle:\\d{3}}/{a", NULL);
+    r3_tree_insert_path(n, "/post/{handle:\\d{3}}/{a}", NULL);
+
+    r3_tree_free(n);
+}
+END_TEST
+
+
 START_TEST (test_pcre_patterns_insert)
 {
     node * n = r3_tree_create(10);
@@ -387,6 +408,7 @@ Suite* r3_suite (void) {
         tcase_add_test(tcase, test_pcre_patterns_insert);
         tcase_add_test(tcase, test_pcre_patterns_insert_2);
         tcase_add_test(tcase, test_pcre_patterns_insert_3);
+        tcase_add_test(tcase, test_incomplete_slug_path);
         tcase_set_timeout(tcase, 30);
 
         suite_add_tcase(suite, tcase);