diff --git a/fs/Vfat.cpp b/fs/Vfat.cpp
index 09d4c1a..97d0937 100644
--- a/fs/Vfat.cpp
+++ b/fs/Vfat.cpp
@@ -32,6 +32,8 @@
 
 #include <linux/kdev_t.h>
 
+#define LOG_TAG "Vold::Fat"
+
 #include <android-base/logging.h>
 #include <android-base/stringprintf.h>
 #include <selinux/selinux.h>