diff --git a/rtc_tools/sanitizers_unittest.cc b/rtc_tools/sanitizers_unittest.cc
index 9606f42..eec037c 100644
--- a/rtc_tools/sanitizers_unittest.cc
+++ b/rtc_tools/sanitizers_unittest.cc
@@ -55,6 +55,7 @@
 void SignedIntegerOverflow() {
   int32_t x = 1234567890;
   x *= 2;
+  (void)x;
 }
 
 // For ubsan_vptr:
diff --git a/system_wrappers/source/cpu_features_linux.cc b/system_wrappers/source/cpu_features_linux.cc
index 335bed4..2d79dde 100644
--- a/system_wrappers/source/cpu_features_linux.cc
+++ b/system_wrappers/source/cpu_features_linux.cc
@@ -66,6 +66,7 @@
   }
 #endif  // WEBRTC_GLIBC_PREREQ(2, 16)
 #if defined(__aarch64__)
+  (void)platform;
   architecture = 8;
   if ((hwcap & HWCAP_FP) != 0)
     result |= kCPUFeatureVFPv3;