diff --git a/src/root.zig b/src/root.zig
index 4d87c86..09625f5 100644
--- a/src/root.zig
+++ b/src/root.zig
@@ -365,7 +365,7 @@ pub fn Range(comptime T: type, end_type: RangeEndType) type {
         }
 
         pub fn sizeHint(self: *const Self) usize {
-            return self.end - self.current + @intFromBool(end_type == .inclusive);
+            return @intCast(self.end - self.current + @intFromBool(end_type == .inclusive));
         }
     };
 }