diff --git a/src/osg/ShaderComposer.cpp b/src/osg/ShaderComposer.cpp
index a35ea52c4..09057b5a3 100644
--- a/src/osg/ShaderComposer.cpp
+++ b/src/osg/ShaderComposer.cpp
@@ -105,11 +105,21 @@ osg::Program* ShaderComposer::getOrCreateProgram(const ShaderComponents& shaderC
         addShaderToProgram(program.get(), vertexShaders);
     }
 
+     if (!tessControlShaders.empty())
+    {
+        addShaderToProgram(program.get(), tessControlShaders);
+    }
+
     if (!geometryShaders.empty())
     {
         addShaderToProgram(program.get(), geometryShaders);
     }
 
+     if (!tessEvaluationShaders.empty())
+    {
+        addShaderToProgram(program.get(), tessEvaluationShaders);
+    }
+
     if (!fragmentShaders.empty())
     {
         addShaderToProgram(program.get(), fragmentShaders);