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-rw-r--r--miasm/ir/ir.py2
1 files changed, 1 insertions, 1 deletions
diff --git a/miasm/ir/ir.py b/miasm/ir/ir.py
index 2e226306..aed5cb65 100644
--- a/miasm/ir/ir.py
+++ b/miasm/ir/ir.py
@@ -539,7 +539,7 @@ class IRCFG(DiGraph):
             }
         )
         if node not in self._blocks:
-            yield [self.DotCellDescription(text="NOT PRESENT", attr={})]
+            yield [self.DotCellDescription(text="NOT PRESENT", attr={'bgcolor': 'red'})]
             return
         for i, assignblk in enumerate(self._blocks[node]):
             for dst, src in viewitems(assignblk):