diff --git a/src/osgDB/Registry.cpp b/src/osgDB/Registry.cpp
index 8b2b0209f..409faa824 100644
--- a/src/osgDB/Registry.cpp
+++ b/src/osgDB/Registry.cpp
@@ -584,9 +584,9 @@ std::string Registry::createLibraryNameForExtension(const std::string& ext)
 #if defined(WIN32)
     // !! recheck evolving Cygwin DLL extension naming protocols !! NHV
     #ifdef __CYGWIN__
-        return "cyg"+prepend+"osgdb_"+lowercase_ext+".dll";
+        return prepend+"cyg"+"osgdb_"+lowercase_ext+".dll";
     #elif defined(__MINGW32__)
-        return "lib"+prepend+"osgdb_"+lowercase_ext+".dll";
+        return prepend+"lib"+"osgdb_"+lowercase_ext+".dll";
     #else
         #ifdef _DEBUG
             return prepend+"osgdb_"+lowercase_ext+"d.dll";