diff --git a/basegfx/source/polygon/b2dpolypolygoncutter.cxx b/basegfx/source/polygon/b2dpolypolygoncutter.cxx
index d32ee87acd38..874524110f89 100644
--- a/basegfx/source/polygon/b2dpolypolygoncutter.cxx
+++ b/basegfx/source/polygon/b2dpolypolygoncutter.cxx
@@ -282,7 +282,7 @@ namespace basegfx
                                 bOnEdge = false;
                             }
                         }
-                        while(bOnEdge && pPNa2 != &rPNa && pPNa2 != &rPNa);
+                        while(bOnEdge && pPNa2 != &rPNa && pPNb2 != &rPNb);
 
                         if(bOnEdge)
                         {
@@ -408,7 +408,7 @@ namespace basegfx
                                 bOnEdge = false;
                             }
                         }
-                        while(bOnEdge && pPNa2 != &rPNa && pPNa2 != &rPNa);
+                        while(bOnEdge && pPNa2 != &rPNa && pPNb2 != &rPNb);
 
                         if(bOnEdge)
                         {