diff --git a/src/audio/volume/peak_volume.h b/src/audio/volume/peak_volume.h
index 057db458277a..7639ef2def72 100644
--- a/src/audio/volume/peak_volume.h
+++ b/src/audio/volume/peak_volume.h
@@ -73,12 +73,12 @@ struct ipc4_peak_volume_config {
 	 * initialization.
 	 */
 	uint64_t curve_duration;
-} __packed __aligned(8);
+} __packed __aligned(4);
 
 struct ipc4_peak_volume_module_cfg {
 	struct ipc4_base_module_cfg base_cfg;
 	struct ipc4_peak_volume_config config[];
-} __packed __aligned(8);
+} __packed __aligned(4);
 
 static inline enum sof_volume_ramp ipc4_curve_type_convert(enum ipc4_curve_type ipc4_type)
 {
diff --git a/src/include/ipc4/probe.h b/src/include/ipc4/probe.h
index 70b23632eecb..96efc1bb7acd 100644
--- a/src/include/ipc4/probe.h
+++ b/src/include/ipc4/probe.h
@@ -92,6 +92,6 @@ struct sof_ipc_probe_info_params {
 struct ipc4_probe_module_cfg {
 	struct ipc4_base_module_cfg base_cfg;
 	struct probe_dma gtw_cfg;
-} __packed __aligned(8);
+} __packed __aligned(4);
 
 #endif /* __SOF_IPC4_PROBE_H__ */