diff --git a/media/libnbaio/NBLog.cpp b/media/libnbaio/NBLog.cpp
index 045bf64..d74a7a6 100644
--- a/media/libnbaio/NBLog.cpp
+++ b/media/libnbaio/NBLog.cpp
@@ -340,7 +340,7 @@
     if (i > 0) {
         lost += i;
         if (fd >= 0) {
-            fdprintf(fd, "%*swarning: lost %u bytes worth of events\n", indent, "", lost);
+            fdprintf(fd, "%*swarning: lost %zu bytes worth of events\n", indent, "", lost);
         } else {
             ALOGI("%*swarning: lost %u bytes worth of events\n", indent, "", lost);
         }