diff --git a/JniConstants.cpp b/JniConstants.cpp
index 7ffcbb2..6c3b9aa 100644
--- a/JniConstants.cpp
+++ b/JniConstants.cpp
@@ -39,6 +39,7 @@
 jclass JniConstants::inet6AddressClass;
 jclass JniConstants::inetAddressClass;
 jclass JniConstants::inetSocketAddressClass;
+jclass JniConstants::inetUnixAddressClass;
 jclass JniConstants::inflaterClass;
 jclass JniConstants::inputStreamClass;
 jclass JniConstants::integerClass;
@@ -66,6 +67,7 @@
 jclass JniConstants::structStatClass;
 jclass JniConstants::structStatFsClass;
 jclass JniConstants::structTimevalClass;
+jclass JniConstants::structUcredClass;
 jclass JniConstants::structUtsnameClass;
 
 static jclass findClass(JNIEnv* env, const char* name) {
@@ -99,6 +101,7 @@
     inet6AddressClass = findClass(env, "java/net/Inet6Address");
     inetAddressClass = findClass(env, "java/net/InetAddress");
     inetSocketAddressClass = findClass(env, "java/net/InetSocketAddress");
+    inetUnixAddressClass = findClass(env, "java/net/InetUnixAddress");
     inflaterClass = findClass(env, "java/util/zip/Inflater");
     inputStreamClass = findClass(env, "java/io/InputStream");
     integerClass = findClass(env, "java/lang/Integer");
@@ -126,5 +129,6 @@
     structStatClass = findClass(env, "libcore/io/StructStat");
     structStatFsClass = findClass(env, "libcore/io/StructStatFs");
     structTimevalClass = findClass(env, "libcore/io/StructTimeval");
+    structUcredClass = findClass(env, "libcore/io/StructUcred");
     structUtsnameClass = findClass(env, "libcore/io/StructUtsname");
 }