diff --git a/ndn-cpp/c/util/dynamic-uchar-array.c b/ndn-cpp/c/util/dynamic-uchar-array.c
index 208544f..d961e7f 100644
--- a/ndn-cpp/c/util/dynamic-uchar-array.c
+++ b/ndn-cpp/c/util/dynamic-uchar-array.c
@@ -16,7 +16,7 @@
     // The needed length is much greater, so use it.
     newLength = length;
     
-  unsigned char *newArray = (*self->realloc)(self->array, newLength);
+  unsigned char *newArray = (*self->realloc)(self, self->array, newLength);
   if (!newArray)
     return NDN_ERROR_DynamicUCharArray_realloc_failed;