diff --git a/system/diagnostic_graph_aggregator/src/common/graph/units.hpp b/system/diagnostic_graph_aggregator/src/common/graph/units.hpp
index 2dbb61eae4367..ced62ed19d800 100644
--- a/system/diagnostic_graph_aggregator/src/common/graph/units.hpp
+++ b/system/diagnostic_graph_aggregator/src/common/graph/units.hpp
@@ -32,7 +32,7 @@ class UnitLink
 public:
   void initialize_object(BaseUnit * parent, BaseUnit * child);
   void initialize_struct();
-  void initialize_status();
+  void initialize_status();  // cppcheck-suppress functionStatic
   DiagLinkStruct create_struct() const { return struct_; }
   DiagLinkStatus create_status() const { return status_; }
   BaseUnit * parent() const { return parent_; }