diff --git a/nall/serializer.hpp b/nall/serializer.hpp
index ff2337ab..e6bc8fad 100755
--- a/nall/serializer.hpp
+++ b/nall/serializer.hpp
@@ -58,7 +58,7 @@ namespace nall {
         for(unsigned n = 0; n < size; n++) idata[isize++] = value >> (n << 3);
       } else if(imode == Load) {
         value = 0;
-        for(unsigned n = 0; n < size; n++) value |= idata[isize++] << (n << 3);
+        for(unsigned n = 0; n < size; n++) value |= (unsigned long long)idata[isize++] << (n << 3);
       } else if(imode == Size) {
         isize += size;
       }