diff --git a/components/nif/nif_file.hpp b/components/nif/nif_file.hpp
index a21882c6d..42e312b7f 100644
--- a/components/nif/nif_file.hpp
+++ b/components/nif/nif_file.hpp
@@ -83,7 +83,7 @@ class NIFFile
     float read_le32f()
     {
         union {
-            int i;
+            uint32_t i;
             float f;
         } u = { read_le32() };
         return u.f;