diff --git a/luni/src/main/native/NetworkUtilities.cpp b/luni/src/main/native/NetworkUtilities.cpp
index de07201..7215306 100644
--- a/luni/src/main/native/NetworkUtilities.cpp
+++ b/luni/src/main/native/NetworkUtilities.cpp
@@ -113,6 +113,7 @@
     static jfieldID familyFid = env->GetFieldID(JniConstants::inetAddressClass, "family", "I");
     ss.ss_family = env->GetIntField(inetAddress, familyFid);
     if (ss.ss_family == AF_UNSPEC) {
+        sa_len = sizeof(ss.ss_family);
         return true; // Job done!
     }