diff --git a/src/shader_recompiler/backend/spirv/emit_spirv_instructions.h b/src/shader_recompiler/backend/spirv/emit_spirv_instructions.h
index 80dd66b16..93d7490ec 100644
--- a/src/shader_recompiler/backend/spirv/emit_spirv_instructions.h
+++ b/src/shader_recompiler/backend/spirv/emit_spirv_instructions.h
@@ -387,6 +387,7 @@ Id EmitImageAtomicXor32(EmitContext& ctx, IR::Inst* inst, u32 handle, Id coords,
 Id EmitImageAtomicExchange32(EmitContext& ctx, IR::Inst* inst, u32 handle, Id coords, Id value);
 
 Id EmitLaneId(EmitContext& ctx);
+Id EmitWarpId(EmitContext& ctx);
 Id EmitQuadShuffle(EmitContext& ctx, Id value, Id index);
 
 } // namespace Shader::Backend::SPIRV