diff --git a/src/Sema.zig b/src/Sema.zig
index c9dacd1185..3e31892395 100644
--- a/src/Sema.zig
+++ b/src/Sema.zig
@@ -8229,8 +8229,8 @@ fn zirVectorElemType(sema: *Sema, block: *Block, inst: Zir.Inst.Index) CompileEr
 fn zirVectorType(sema: *Sema, block: *Block, inst: Zir.Inst.Index) CompileError!Air.Inst.Ref {
     const mod = sema.mod;
     const inst_data = sema.code.instructions.items(.data)[inst].pl_node;
-    const elem_type_src: LazySrcLoc = .{ .node_offset_builtin_call_arg0 = inst_data.src_node };
-    const len_src: LazySrcLoc = .{ .node_offset_builtin_call_arg1 = inst_data.src_node };
+    const len_src: LazySrcLoc = .{ .node_offset_builtin_call_arg0 = inst_data.src_node };
+    const elem_type_src: LazySrcLoc = .{ .node_offset_builtin_call_arg1 = inst_data.src_node };
     const extra = sema.code.extraData(Zir.Inst.Bin, inst_data.payload_index).data;
     const len: u32 = @intCast(try sema.resolveInt(block, len_src, extra.lhs, Type.u32, .{
         .needed_comptime_reason = "vector length must be comptime-known",