diff --git a/src/common_audio/resampler/resampler_unittest.cc b/src/common_audio/resampler/resampler_unittest.cc
index f50034dba9..14093fa4a6 100644
--- a/src/common_audio/resampler/resampler_unittest.cc
+++ b/src/common_audio/resampler/resampler_unittest.cc
@@ -62,7 +62,10 @@ class ResamplerTest : public testing::Test {
 
 ResamplerTest::ResamplerTest() {}
 
-void ResamplerTest::SetUp() {}
+void ResamplerTest::SetUp() {
+  // Initialize input data with anything. The tests are content independent.
+  memset(data_in_, 1, sizeof(data_in_));
+}
 
 void ResamplerTest::TearDown() {}