diff --git a/src/osg/Texture.cpp b/src/osg/Texture.cpp
index 7b0406683..22e234156 100644
--- a/src/osg/Texture.cpp
+++ b/src/osg/Texture.cpp
@@ -1397,6 +1397,13 @@ void Texture::computeInternalFormatWithImage(const osg::Image& image) const
     }
     
     _internalFormat = internalFormat;
+
+    // GLES doesn't cope with internal formats of 1,2,3 and 4 so map them to the appropriate equivilants.
+    if (_internalFormat==1) _internalFormat = GL_ALPHA;
+    if (_internalFormat==2) _internalFormat = GL_LUMINANCE_ALPHA;
+    if (_internalFormat==3) _internalFormat = GL_RGB;
+    if (_internalFormat==4) _internalFormat = GL_RGBA;
+
     computeInternalFormatType();
     
     //osg::notify(osg::NOTICE)<<"Internal format="<<std::hex<<internalFormat<<std::dec<<std::endl;