diff --git a/test/cmocka/src/audio/eq_fir/eq_fir_process.c b/test/cmocka/src/audio/eq_fir/eq_fir_process.c
index ebfd02b2411f..2b657c23c2fb 100644
--- a/test/cmocka/src/audio/eq_fir/eq_fir_process.c
+++ b/test/cmocka/src/audio/eq_fir/eq_fir_process.c
@@ -72,10 +72,7 @@ static struct sof_ipc_comp_process *create_eq_fir_comp_ipc(struct test_data *td)
 	struct sof_eq_fir_config *eq;
 	size_t ipc_size = sizeof(struct sof_ipc_comp_process);
 	struct sof_abi_hdr *blob = (struct sof_abi_hdr *)fir_coef_2ch;
-	const struct sof_uuid uuid = {
-		.a = 0x43a90ce7, .b = 0xf3a5, .c = 0x41df,
-		.d = {0xac, 0x06, 0xba, 0x98, 0x65, 0x1a, 0xe6, 0xa3}
-	};
+	const struct sof_uuid uuid = SOF_REG_UUID(eq_fir);
 
 	ipc = calloc(1, ipc_size + blob->size + SOF_UUID_SIZE);
 	memcpy_s(ipc + 1, SOF_UUID_SIZE, &uuid, SOF_UUID_SIZE);
diff --git a/test/cmocka/src/audio/eq_iir/eq_iir_process.c b/test/cmocka/src/audio/eq_iir/eq_iir_process.c
index 54716bcfd0f1..763d87b87518 100644
--- a/test/cmocka/src/audio/eq_iir/eq_iir_process.c
+++ b/test/cmocka/src/audio/eq_iir/eq_iir_process.c
@@ -71,10 +71,7 @@ static struct sof_ipc_comp_process *create_eq_iir_comp_ipc(struct test_data *td)
 	struct sof_eq_iir_config *eq;
 	size_t ipc_size = sizeof(struct sof_ipc_comp_process);
 	struct sof_abi_hdr *blob = (struct sof_abi_hdr *)iir_coef_2ch;
-	const struct sof_uuid uuid = {
-		.a = 0x5150c0e6, .b = 0x27f9, .c = 0x4ec8,
-		.d = {0x83, 0x51, 0xc7, 0x05, 0xb6, 0x42, 0xd1, 0x2f}
-	};
+	const struct sof_uuid uuid = SOF_REG_UUID(eq_iir);
 
 	ipc = calloc(1, ipc_size + blob->size + SOF_UUID_SIZE);
 	memcpy_s(ipc + 1, SOF_UUID_SIZE, &uuid, SOF_UUID_SIZE);
diff --git a/test/cmocka/src/audio/mux/demux_copy.c b/test/cmocka/src/audio/mux/demux_copy.c
index 40040023b6df..17414b4f7c25 100644
--- a/test/cmocka/src/audio/mux/demux_copy.c
+++ b/test/cmocka/src/audio/mux/demux_copy.c
@@ -96,10 +96,7 @@ static struct sof_ipc_comp_process *create_demux_comp_ipc(struct test_data *td)
 	size_t ipc_size = sizeof(struct sof_ipc_comp_process);
 	size_t mux_size = sizeof(struct sof_mux_config) +
 		MUX_MAX_STREAMS * sizeof(struct mux_stream_data);
-	const struct sof_uuid uuid = {
-		.a = 0xc4b26868, .b = 0x1430, .c = 0x470e,
-		.d = {0xa0, 0x89, 0x15, 0xd1, 0xc7, 0x7f, 0x85, 0x1a}
-	};
+	const struct sof_uuid uuid = SOF_REG_UUID(demux);
 	int i, j;
 
 	ipc = calloc(1, ipc_size + mux_size + SOF_UUID_SIZE);
diff --git a/test/cmocka/src/audio/mux/mux_copy.c b/test/cmocka/src/audio/mux/mux_copy.c
index 6e391269054a..2ecc814483bd 100644
--- a/test/cmocka/src/audio/mux/mux_copy.c
+++ b/test/cmocka/src/audio/mux/mux_copy.c
@@ -114,10 +114,7 @@ static struct sof_ipc_comp_process *create_mux_comp_ipc(struct test_data *td)
 	size_t ipc_size = sizeof(struct sof_ipc_comp_process);
 	size_t mux_size = sizeof(struct sof_mux_config) +
 		MUX_MAX_STREAMS * sizeof(struct mux_stream_data);
-	const struct sof_uuid uuid = {
-		.a = 0xc607ff4d, .b = 0x9cb6, .c = 0x49dc,
-		.d = {0xb6, 0x78, 0x7d, 0xa3, 0xc6, 0x3e, 0xa5, 0x57}
-	};
+	const struct sof_uuid uuid = SOF_REG_UUID(mux);
 	int i, j;
 
 	ipc = calloc(1, ipc_size + mux_size + SOF_UUID_SIZE);
diff --git a/test/cmocka/src/audio/mux/mux_get_processing_function.c b/test/cmocka/src/audio/mux/mux_get_processing_function.c
index af9fd418ec56..0e4f22ff7021 100644
--- a/test/cmocka/src/audio/mux/mux_get_processing_function.c
+++ b/test/cmocka/src/audio/mux/mux_get_processing_function.c
@@ -40,10 +40,7 @@ static struct sof_ipc_comp_process *create_mux_comp_ipc(struct test_data *td)
 	size_t ipc_size = sizeof(struct sof_ipc_comp_process);
 	size_t mux_size = sizeof(struct sof_mux_config) +
 		MUX_MAX_STREAMS * sizeof(struct mux_stream_data);
-	const struct sof_uuid uuid = {
-		.a = 0xc607ff4d, .b = 0x9cb6, .c = 0x49dc,
-		.d = {0xb6, 0x78, 0x7d, 0xa3, 0xc6, 0x3e, 0xa5, 0x57}
-	};
+	const struct sof_uuid uuid = SOF_REG_UUID(mux);
 	int i, j;
 
 	ipc = calloc(1, ipc_size + mux_size + SOF_UUID_SIZE);