diff --git a/sound/soc/sof/amd/Makefile b/sound/soc/sof/amd/Makefile
index 701d578d63b2..63fe0d55fd0e 100644
--- a/sound/soc/sof/amd/Makefile
+++ b/sound/soc/sof/amd/Makefile
@@ -5,7 +5,7 @@
 # Copyright(c) 2021, 2023 Advanced Micro Devices, Inc. All rights reserved.
 
 snd-sof-amd-acp-y := acp.o acp-loader.o acp-ipc.o acp-pcm.o acp-stream.o acp-trace.o acp-common.o
-snd-sof-amd-acp-$(CONFIG_SND_SOC_SOF_ACP_PROBES) = acp-probes.o
+snd-sof-amd-acp-$(CONFIG_SND_SOC_SOF_ACP_PROBES) += acp-probes.o
 snd-sof-amd-renoir-y := pci-rn.o renoir.o
 snd-sof-amd-rembrandt-y := pci-rmb.o rembrandt.o
 snd-sof-amd-vangogh-y := pci-vangogh.o vangogh.o