diff --git a/arangod/RocksDBEngine/RocksDBEngine.cpp b/arangod/RocksDBEngine/RocksDBEngine.cpp
index 91b2c7d65a..afaaf543df 100644
--- a/arangod/RocksDBEngine/RocksDBEngine.cpp
+++ b/arangod/RocksDBEngine/RocksDBEngine.cpp
@@ -1913,8 +1913,9 @@ void RocksDBEngine::getStatistics(VPackBuilder& builder) const {
   auto rates = manager->globalHitRates();
   builder.add("cache.limit", VPackValue(manager->globalLimit()));
   builder.add("cache.allocated", VPackValue(manager->globalAllocation()));
-  builder.add("cache.hit-rate-lifetime", VPackValue(rates.first));
-  builder.add("cache.hit-rate-recent", VPackValue(rates.second));
+  // handle NaN
+  builder.add("cache.hit-rate-lifetime", VPackValue(rates.first >= 0.0 ? rates.first : 0.0));
+  builder.add("cache.hit-rate-recent", VPackValue(rates.second >= 0.0 ? rates.second : 0.0));
 
   // print column family statistics
   builder.add("columnFamilies", VPackValue(VPackValueType::Object));