diff --git a/src/utils/array.c b/src/utils/array.c
index 5af709d..c81bd71 100644
--- a/src/utils/array.c
+++ b/src/utils/array.c
@@ -31,7 +31,7 @@ void array_put(array_t* array, size_t index, void* elem)
     // Make sure allocated space is big enough
     if(index >= array->size)
     {
-        array->data = realloc(array->data, (index + 1) * 2);
+        array->data = realloc(array->data, (index + 1) * 2 * sizeof(void*));
         if(!array->data)
         {
             perror("Catastrophic memory allocation failure:");