diff --git a/fluids3.0/common/app_util.cpp b/fluids3.0/common/app_util.cpp
index 8981f73..dfa9873 100644
--- a/fluids3.0/common/app_util.cpp
+++ b/fluids3.0/common/app_util.cpp
@@ -2588,11 +2588,15 @@ unsigned lodepng_huffman_code_lengths(unsigned* lengths, const unsigned* frequen
 static unsigned HuffmanTree_makeFromFrequencies(HuffmanTree* tree, const unsigned* frequencies,
                                                 size_t mincodes, size_t numcodes, unsigned maxbitlen)
 {
+  unsigned* lengths;
   unsigned error = 0;
   while(!frequencies[numcodes - 1] && numcodes > mincodes) numcodes--; /*trim zeroes*/
   tree->maxbitlen = maxbitlen;
   tree->numcodes = (unsigned)numcodes; /*number of symbols*/
-  tree->lengths = (unsigned*)myrealloc(tree->lengths, numcodes * sizeof(unsigned));
+  lengths = (unsigned*)realloc(tree->lengths, numcodes * sizeof(unsigned));
+	if (!lengths)
+		free(tree->lengths);
+	tree->lengths = lengths;
   if(!tree->lengths) return 83; /*alloc fail*/
   /*initialize all lengths to 0*/
   memset(tree->lengths, 0, numcodes * sizeof(unsigned));