diff --git a/src/OpenGl/OpenGl_FrameBuffer.cxx b/src/OpenGl/OpenGl_FrameBuffer.cxx
index 2e0c192c84..fc4c52b713 100644
--- a/src/OpenGl/OpenGl_FrameBuffer.cxx
+++ b/src/OpenGl/OpenGl_FrameBuffer.cxx
@@ -64,6 +64,8 @@ Standard_Boolean OpenGl_FrameBuffer::Init (const Handle(OpenGl_Context)& theGlCo
   // clean up previous state
   Release (theGlContext.operator->());
 
+  myIsOwnBuffer = true;
+
   // setup viewport sizes as is
   myVPSizeX = theViewportSizeX;
   myVPSizeY = theViewportSizeY;
@@ -163,6 +165,8 @@ Standard_Boolean OpenGl_FrameBuffer::InitWithRB (const Handle(OpenGl_Context)& t
   // clean up previous state
   Release (theGlCtx.operator->());
 
+  myIsOwnBuffer = true;
+
   // setup viewport sizes as is
   myVPSizeX = theViewportSizeX;
   myVPSizeY = theViewportSizeY;