diff --git a/src/node.c b/src/node.c
index aa459cd..33de25d 100644
--- a/src/node.c
+++ b/src/node.c
@@ -76,12 +76,12 @@ void r3_tree_free(node * tree) {
     if (tree->routes) {
         zfree(tree->routes);
     }
-    /*
-    if (tree->pcre_pattern)
-        zfree(tree->pcre_pattern);
-    if (tree->pcre_extra)
-        zfree(tree->pcre_extra);
-    */
+    if (tree->pcre_pattern) {
+        pcre_free(tree->pcre_pattern);
+    }
+    if (n->pcre_extra) {
+        pcre_free_study(n->pcre_extra);
+    }
     if (tree->combined_pattern)
         zfree(tree->combined_pattern);
     if (tree->ov)
@@ -205,14 +205,12 @@ void r3_tree_compile_patterns(node * n) {
     int erroffset;
     unsigned int option_bits = 0;
 
-    /*
-    if (n->pcre_pattern)
-        zfree(n->pcre_pattern);
-    if (n->pcre_extra)
-        zfree(n->pcre_extra);
-    */
-
-    // n->pcre_pattern;
+    if (tree->pcre_pattern) {
+        pcre_free(tree->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 */