diff --git a/lib/std/math/big/int.zig b/lib/std/math/big/int.zig
index 7d8d3a195bc8f6ddba03b128e9ec7d65b22b6b2b..e85e8d292d5040691fb628aa1e2cb815f8b34023 100644
--- a/lib/std/math/big/int.zig
+++ b/lib/std/math/big/int.zig
@@ -137,10 +137,9 @@ pub const Int = struct {
     }
 
     /// Frees all memory associated with an Int.
-    pub fn deinit(self: *Int) void {
+    pub fn deinit(self: Int) void {
         self.assertWritable();
         self.allocator.?.free(self.limbs);
-        self.* = undefined;
     }
 
     /// Clones an Int and returns a new Int with the same value. The new Int is a deep copy and