diff --git a/infer/src/absint/ConcurrencyModels.ml b/infer/src/absint/ConcurrencyModels.ml
index 45eab9447..aa8d81365 100644
--- a/infer/src/absint/ConcurrencyModels.ml
+++ b/infer/src/absint/ConcurrencyModels.ml
@@ -88,6 +88,7 @@ end = struct
     ; {rwm with classname= "apache::thrift::concurrency::ReadWriteMutex"}
     ; {shd with classname= "boost::shared_mutex"}
     ; {def with classname= "boost::mutex"}
+    ; {def with classname= "folly::detail::distributed_mutex::DistributedMutex"}
     ; {def with classname= "folly::MicroSpinLock"}
     ; {shd with classname= "folly::RWSpinLock"}
     ; {shd with classname= "folly::SharedMutex"}