diff --git a/src/amd/compiler/aco_instruction_selection.cpp b/src/amd/compiler/aco_instruction_selection.cpp
index 7bdc21f170d..d32ee580613 100644
--- a/src/amd/compiler/aco_instruction_selection.cpp
+++ b/src/amd/compiler/aco_instruction_selection.cpp
@@ -5626,9 +5626,8 @@ void visit_intrinsic(isel_context *ctx, nir_intrinsic_instr *instr)
    }
    case nir_intrinsic_read_invocation: {
       Temp src = get_ssa_temp(ctx, instr->src[0].ssa);
-      Temp lane = get_ssa_temp(ctx, instr->src[1].ssa);
+      Temp lane = bld.as_uniform(get_ssa_temp(ctx, instr->src[1].ssa));
       Temp dst = get_ssa_temp(ctx, &instr->dest.ssa);
-      assert(lane.regClass() == s1);
       if (src.regClass() == v1) {
          emit_wqm(ctx, bld.vop3(aco_opcode::v_readlane_b32, bld.def(s1), src, lane), dst);
       } else if (src.regClass() == v2) {