diff --git a/src/amd/compiler/aco_validate.cpp b/src/amd/compiler/aco_validate.cpp
index ee6e4c7a2e6..d2d748c62fa 100644
--- a/src/amd/compiler/aco_validate.cpp
+++ b/src/amd/compiler/aco_validate.cpp
@@ -378,7 +378,7 @@ bool validate_ir(Program* program)
                check(op.regClass().type() == RegType::vgpr, "All operands of PSEUDO_REDUCTION instructions must be in VGPRs.", instr.get());
 
             if (instr->opcode == aco_opcode::p_reduce && instr->reduction().cluster_size == program->wave_size)
-               check(instr->definitions[0].regClass().type() == RegType::sgpr, "The result of unclustered reductions must go into an SGPR.", instr.get());
+               check(instr->definitions[0].regClass().type() == RegType::sgpr || program->wave_size == 32, "The result of unclustered reductions must go into an SGPR.", instr.get());
             else
                check(instr->definitions[0].regClass().type() == RegType::vgpr, "The result of scans and clustered reductions must go into a VGPR.", instr.get());