diff --git a/libs/utils/Static.cpp b/libs/utils/Static.cpp
index bfcb2da..624e917 100644
--- a/libs/utils/Static.cpp
+++ b/libs/utils/Static.cpp
@@ -57,8 +57,8 @@
     virtual status_t writeLines(const struct iovec& vec, size_t N)
     {
         //android_writevLog(&vec, N);       <-- this is now a no-op
-        if (N != 1) ALOGI("WARNING: writeLines N=%d\n", N);
-        ALOGI("%.*s", vec.iov_len, (const char*) vec.iov_base);
+        if (N != 1) ALOGI("WARNING: writeLines N=%zu\n", N);
+        ALOGI("%.*s", (int)vec.iov_len, (const char*) vec.iov_base);
         return NO_ERROR;
     }
 };