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 2b657c23c2fb..a7087fa7c470 100644
--- a/test/cmocka/src/audio/eq_fir/eq_fir_process.c
+++ b/test/cmocka/src/audio/eq_fir/eq_fir_process.c
@@ -186,6 +186,7 @@ static int teardown(void **state)
 	test_free(mod->input_buffers);
 	test_free(mod->output_buffers);
 	test_free(mod->stream_params);
+	mod->stream_params = NULL;
 	test_free(td->params);
 	free_test_source(td->source);
 	free_test_sink(td->sink);
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 763d87b87518..9df4d17af864 100644
--- a/test/cmocka/src/audio/eq_iir/eq_iir_process.c
+++ b/test/cmocka/src/audio/eq_iir/eq_iir_process.c
@@ -185,6 +185,7 @@ static int teardown(void **state)
 	test_free(mod->input_buffers);
 	test_free(mod->output_buffers);
 	test_free(mod->stream_params);
+	mod->stream_params = NULL;
 	test_free(td->params);
 	free_test_source(td->source);
 	free_test_sink(td->sink);