diff --git a/src/osg/State.cpp b/src/osg/State.cpp
index 83af4211e..be8667191 100644
--- a/src/osg/State.cpp
+++ b/src/osg/State.cpp
@@ -1863,16 +1863,16 @@ std::string State::getDefineString(const osg::ShaderDefines& shaderDefines)
             const StateSet::DefinePair& dp = cd_itr->second;
             shaderDefineStr += "#define ";
             shaderDefineStr += cd_itr->first;
-            if (dp.first.empty())
-            {
-                shaderDefineStr += "\n";
-            }
-            else
+            if (!dp.first.empty())
             {
                 shaderDefineStr += " ";
                 shaderDefineStr += dp.first;
-                shaderDefineStr += "\n";
             }
+#ifdef WIN32
+            shaderDefineStr += "\r\n";
+#else
+            shaderDefineStr += "\n";
+#endif
 
             ++sd_itr;
             ++cd_itr;