diff --git a/src/node.c b/src/node.c
index 8ec0aed..d7219fa 100644
--- a/src/node.c
+++ b/src/node.c
@@ -79,9 +79,11 @@ void r3_tree_free(node * tree) {
     if (tree->pcre_pattern) {
         pcre_free(tree->pcre_pattern);
     }
+    /*
     if (tree->pcre_extra) {
         pcre_free_study(tree->pcre_extra);
     }
+    */
     if (tree->combined_pattern)
         zfree(tree->combined_pattern);
     if (tree->ov)
@@ -208,9 +210,11 @@ void r3_tree_compile_patterns(node * n) {
     if (n->pcre_pattern) {
         pcre_free(n->pcre_pattern);
     }
+    /*
     if (n->pcre_extra) {
         pcre_free_study(n->pcre_extra);
     }
+    */
     n->pcre_pattern = pcre_compile(
             n->combined_pattern,              /* the pattern */
             option_bits,                                /* default options */
diff --git a/tests/bench_str.csv b/tests/bench_str.csv
index fd0f711..12a32f5 100644
--- a/tests/bench_str.csv
+++ b/tests/bench_str.csv
@@ -444,3 +444,4 @@
 1400666823,6406965.25
 1400666950,6684744.95
 1400667091,6771202.47
+1400667800,6695271.95