diff --git a/src/BuiltinFn.zig b/src/BuiltinFn.zig
index deb1cbfa761c4bba956f944d5cd5f133baf03066..1710169dc7047a21364765d28f871c51d3c2271f 100644
--- a/src/BuiltinFn.zig
+++ b/src/BuiltinFn.zig
@@ -477,7 +477,7 @@ pub const list = list: {
             "@intCast",
             .{
                 .tag = .int_cast,
-                .param_count = 1,
+                .param_count = 2,
             },
         },
         .{