diff --git a/util/logging.h b/util/logging.h
index ce0269726..7ca8ae0a3 100644
--- a/util/logging.h
+++ b/util/logging.h
@@ -19,7 +19,6 @@
 namespace rocksdb {
 
 class Slice;
-class WritableFile;
 
 // Append a human-readable size in bytes
 int AppendHumanBytes(uint64_t bytes, char* output, int len);