1 files changed, 3 insertions, 3 deletions
diff --git a/exercises/024_errors4.zig b/exercises/024_errors4.zig
index c2f4f6f..02ec0f2 100644
--- a/exercises/024_errors4.zig
+++ b/exercises/024_errors4.zig
@@ -21,9 +21,9 @@ const MyNumberError = error{
 pub fn main() void {
     // The "catch 0" below is a temporary hack to deal with
     // makeJustRight()'s returned error union (for now).
-    var a: u32 = makeJustRight(44) catch 0;
-    var b: u32 = makeJustRight(14) catch 0;
-    var c: u32 = makeJustRight(4) catch 0;
+    const a: u32 = makeJustRight(44) catch 0;
+    const b: u32 = makeJustRight(14) catch 0;
+    const c: u32 = makeJustRight(4) catch 0;
 
     std.debug.print("a={}, b={}, c={}\n", .{ a, b, c });
 }