diff --git a/icu4c/source/common/sharedobject.h b/icu4c/source/common/sharedobject.h
index 44028699975..d0b93039258 100644
--- a/icu4c/source/common/sharedobject.h
+++ b/icu4c/source/common/sharedobject.h
@@ -1,6 +1,6 @@
 /*
 ******************************************************************************
-* Copyright (C) 2015, International Business Machines
+* Copyright (C) 2015-2016, International Business Machines
 * Corporation and others.  All Rights Reserved.
 ******************************************************************************
 * sharedobject.h
@@ -21,7 +21,7 @@ U_NAMESPACE_BEGIN
  * update cache metrics. No other part of ICU, except for SharedObject,
  * should directly call the methods of this base class.
  */
-class UnifiedCacheBase : public UObject {
+class U_COMMON_API UnifiedCacheBase : public UObject {
 public:
     UnifiedCacheBase() { }