diff --git a/bench_str.csv b/bench_str.csv
index e1184d3..e187eef 100644
--- a/bench_str.csv
+++ b/bench_str.csv
@@ -483,3 +483,13 @@
 1400829117,12258758.55,4129968.45,59074.70
 1400829143,12339827.27,4775224.01,55924.05
 1400831278,11421287.15,4742488.93,39945.75
+1400832805,11676305.28,4832961.50,58254.22
+1400832811,11785948.52,4137657.27,45590.26
+1400832831,11918383.46,4859275.06,47662.55
+1400832837,11650937.22,4734982.85,61680.94
+1400832892,11728021.34,4274247.24,45590.26
+1400832912,11580034.68,4752494.99,62601.55
+1400833017,11890578.32,4501803.27,29330.80
+1400833024,11715363.55,4726544.41,59074.70
+1400833045,11813359.08,4828190.72,53092.46
+1400833051,11082009.03,4721512.49,62601.55
diff --git a/src/node.c b/src/node.c
index 63c38d3..444e739 100644
--- a/src/node.c
+++ b/src/node.c
@@ -261,11 +261,12 @@ node * r3_tree_matchl(const node * n, char * path, int path_len, match_entry * e
     int i;
     int ov_cnt;
     int restlen;
+    char *pp;
+    char *pp_end = path + path_len;
 
-    if (n->compare_type == NODE_COMPARE_OPCODE ) {
+    if (n->compare_type == NODE_COMPARE_OPCODE) {
         for (i = 0; i < n->edge_len ; i++ ) {
-            char *pp     = path;
-            char *pp_end = path + path_len;
+            pp = path;
             e = n->edges[i];
             switch(e->opcode) {
                 case OP_EXPECT_NOSLASH:
@@ -289,6 +290,7 @@ node * r3_tree_matchl(const node * n, char * path, int path_len, match_entry * e
                     }
                     break;
             }
+            // check match
             if ( (pp - path) > 0) {
                 restlen = pp_end - pp;
                 if (entry) {
@@ -337,10 +339,12 @@ node * r3_tree_matchl(const node * n, char * path, int path_len, match_entry * e
         }
 
 
+        char *substring_start;
+        int   substring_length;
         for (i = 1; i < rc; i++)
         {
-            char *substring_start = path + ov[2*i];
-            int   substring_length = ov[2*i+1] - ov[2*i];
+            substring_start = path + ov[2*i];
+            substring_length = ov[2*i+1] - ov[2*i];
             // info("%2d: %.*s\n", i, substring_length, substring_start);
 
             if ( substring_length > 0) {