diff --git a/media/libstagefright/foundation/ANetworkSession.cpp b/media/libstagefright/foundation/ANetworkSession.cpp
index e629588..4cd51d0 100644
--- a/media/libstagefright/foundation/ANetworkSession.cpp
+++ b/media/libstagefright/foundation/ANetworkSession.cpp
@@ -579,7 +579,7 @@
 
         if (err == -EAGAIN) {
             if (!mOutFragments.empty()) {
-                ALOGI("%d datagrams remain queued.", mOutFragments.size());
+                ALOGI("%zu datagrams remain queued.", mOutFragments.size());
             }
             err = OK;
         }