diff --git a/third-party/benchmark/src/sysinfo.cc b/third-party/benchmark/src/sysinfo.cc
index 3993ae17f7fc4..837be8f9cf891 100644
--- a/third-party/benchmark/src/sysinfo.cc
+++ b/third-party/benchmark/src/sysinfo.cc
@@ -358,7 +358,6 @@ std::vector<CPUInfo::CacheInfo> GetCacheSizesWindows() {
     C.num_sharing = static_cast<int>(b.count());
     C.level = cache.Level;
     C.size = cache.Size;
-    C.type = "Unknown";
     switch (cache.Type) {
       case CacheUnified:
         C.type = "Unified";
@@ -372,6 +371,9 @@ std::vector<CPUInfo::CacheInfo> GetCacheSizesWindows() {
       case CacheTrace:
         C.type = "Trace";
         break;
+      case CacheUnknown:
+        C.type = "Unknown";
+        break;
     }
     res.push_back(C);
   }