diff --git a/source/duke3d/src/gamevars.cpp b/source/duke3d/src/gamevars.cpp
index 54f7c9f49..1c8215a76 100644
--- a/source/duke3d/src/gamevars.cpp
+++ b/source/duke3d/src/gamevars.cpp
@@ -581,7 +581,10 @@ size_t __fastcall Gv_GetArrayCountFromFile(int const arrayIdx, size_t const file
 
     size_t const elementSize = Gv_GetArrayElementSize(arrayIdx);
     size_t const denominator = min(elementSize, sizeof(uint32_t));
-    return (filelength + denominator - 1) / denominator;
+
+    Bassert(denominator);
+
+    return tabledivide64(filelength + denominator - 1, denominator);
 }
 
 int __fastcall Gv_GetArrayValue(int const id, int index)