diff --git a/system_wrappers/source/cpu_info.cc b/system_wrappers/source/cpu_info.cc
index 7288c67efd..eff720371a 100644
--- a/system_wrappers/source/cpu_info.cc
+++ b/system_wrappers/source/cpu_info.cc
@@ -32,7 +32,7 @@ static int DetectNumberOfCores() {
   number_of_cores = static_cast<int>(si.dwNumberOfProcessors);
 #elif defined(WEBRTC_LINUX) || defined(WEBRTC_ANDROID)
   number_of_cores = static_cast<int>(sysconf(_SC_NPROCESSORS_ONLN));
-  if (number_of_cores < 0) {
+  if (number_of_cores <= 0) {
     RTC_LOG(LS_ERROR) << "Failed to get number of cores";
     number_of_cores = 1;
   }