diff --git a/src/gallium/drivers/nouveau/codegen/nv50_ir_emit_gm107.cpp b/src/gallium/drivers/nouveau/codegen/nv50_ir_emit_gm107.cpp
index e62d80745b7..31b483694bb 100644
--- a/src/gallium/drivers/nouveau/codegen/nv50_ir_emit_gm107.cpp
+++ b/src/gallium/drivers/nouveau/codegen/nv50_ir_emit_gm107.cpp
@@ -1707,6 +1707,7 @@ CodeEmitterGM107::emitIADD()
       emitX  (0x2b);
    } else {
       emitInsn(0x1c000000);
+      emitNEG (0x38, insn->src(0));
       emitSAT (0x36);
       emitX   (0x35);
       emitCC  (0x34);