diff --git a/Zip/include/Poco/Zip/ZipUtil.h b/Zip/include/Poco/Zip/ZipUtil.h
index e3278d630..cf941a036 100644
--- a/Zip/include/Poco/Zip/ZipUtil.h
+++ b/Zip/include/Poco/Zip/ZipUtil.h
@@ -31,7 +31,7 @@ namespace Poco {
 namespace Zip {
 
 
-class ZipUtil
+class Zip_API ZipUtil
 	/// A utility class used for parsing header information inside of zip files
 {
 public: