diff --git a/src/amd/compiler/aco_register_allocation.cpp b/src/amd/compiler/aco_register_allocation.cpp
index 1acd899e6c5..445d723feb7 100644
--- a/src/amd/compiler/aco_register_allocation.cpp
+++ b/src/amd/compiler/aco_register_allocation.cpp
@@ -2959,6 +2959,14 @@ register_allocation(Program* program, std::vector<IDSet>& live_out_per_block, ra
                                                    parallelcopy, instr);
                update_renames(ctx, register_file, parallelcopy, instr, (UpdateRenames)0);
                definition->setFixed(reg);
+            } else if (instr_info.classes[(int)instr->opcode] == instr_class::wmma &&
+                       instr->operands[2].isTemp() && instr->operands[2].isKill() &&
+                       instr->operands[2].regClass() == definition->regClass()) {
+               /* For WMMA, the dest needs to either be equal to operands[2], or not overlap it.
+                * Here we set a policy of forcing them the same if operands[2] gets killed (and
+                * otherwise they don't overlap). This may not be optimal if RA would select a
+                * different location due to affinity, but that gets complicated very quickly. */
+               definition->setFixed(instr->operands[2].physReg());
             }
 
             if (!definition->isFixed()) {