diff --git a/OgreMain/include/OgreHardwarePixelBuffer.h b/OgreMain/include/OgreHardwarePixelBuffer.h
index 0f43c5d4ff0..59a9a5d79c9 100644
--- a/OgreMain/include/OgreHardwarePixelBuffer.h
+++ b/OgreMain/include/OgreHardwarePixelBuffer.h
@@ -180,7 +180,7 @@ namespace Ogre {
             @return A pointer to the render target. This pointer has the lifespan of this
             PixelBuffer.
         */
-        RenderTexture *getRenderTarget(size_t slice=0);
+        RenderTexture *getRenderTarget(size_t slice=0) const;
         
         /// Gets the width of this buffer
         uint32 getWidth() const { return mWidth; }
diff --git a/OgreMain/src/OgreHardwarePixelBuffer.cpp b/OgreMain/src/OgreHardwarePixelBuffer.cpp
index 3d25d3f3b2c..3787842de7a 100644
--- a/OgreMain/src/OgreHardwarePixelBuffer.cpp
+++ b/OgreMain/src/OgreHardwarePixelBuffer.cpp
@@ -177,7 +177,7 @@ namespace Ogre
     }
     //-----------------------------------------------------------------------------    
     
-    RenderTexture *HardwarePixelBuffer::getRenderTarget(size_t zoffset)
+    RenderTexture *HardwarePixelBuffer::getRenderTarget(size_t zoffset) const
     {
         assert(mUsage & TU_RENDERTARGET);
         return mSliceTRT.at(zoffset);