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-rw-r--r--src/gui/WindowFactory.cpp2
1 files changed, 1 insertions, 1 deletions
diff --git a/src/gui/WindowFactory.cpp b/src/gui/WindowFactory.cpp
index c5f9c089..06c8266a 100644
--- a/src/gui/WindowFactory.cpp
+++ b/src/gui/WindowFactory.cpp
@@ -130,7 +130,7 @@ WindowFactory::parent_graph_window(SPtr<const BlockModel> block)
/** Present a GraphWindow for a Graph.
*
- * If `preferred` is not NULL, it will be set to display `graph` if the graph
+ * If `preferred` is not null, it will be set to display `graph` if the graph
* does not already have a visible window, otherwise that window will be
* presented and `preferred` left unmodified.
*/