diff --git a/src/uml/decorators.cc b/src/uml/decorators.cc
index 23b9f8fe..35ad3723 100644
--- a/src/uml/decorators.cc
+++ b/src/uml/decorators.cc
@@ -25,14 +25,6 @@
 namespace clanguml {
 namespace decorators {
 
-const std::string note::label = "note";
-const std::string skip::label = "skip";
-const std::string skip_relationship::label = "skiprelationship";
-const std::string style::label = "style";
-const std::string aggregation::label = "aggregation";
-const std::string composition::label = "composition";
-const std::string association::label = "association";
-
 std::shared_ptr<decorator> decorator::from_string(std::string_view c)
 {
     if (c.find(note::label) == 0) {
diff --git a/src/uml/decorators.h b/src/uml/decorators.h
index 04c2f10d..74c99960 100644
--- a/src/uml/decorators.h
+++ b/src/uml/decorators.h
@@ -45,7 +45,7 @@ protected:
 };
 
 struct note : public decorator {
-    static const std::string label;
+    static inline const std::string label{"note"};
 
     std::string position{"left"};
     std::string text;
@@ -54,19 +54,19 @@ struct note : public decorator {
 };
 
 struct skip : public decorator {
-    static const std::string label;
+    static inline const std::string label{"skip"};
 
     static std::shared_ptr<decorator> from_string(std::string_view c);
 };
 
 struct skip_relationship : public decorator {
-    static const std::string label;
+    static inline const std::string label{"skiprelationship"};
 
     static std::shared_ptr<decorator> from_string(std::string_view c);
 };
 
 struct style : public decorator {
-    static const std::string label;
+    static inline const std::string label{"style"};
 
     std::string spec;
     static std::shared_ptr<decorator> from_string(std::string_view c);
@@ -77,19 +77,19 @@ struct relationship : public decorator {
 };
 
 struct aggregation : public relationship {
-    static const std::string label;
+    static inline const std::string label{"aggregation"};
 
     static std::shared_ptr<decorator> from_string(std::string_view c);
 };
 
 struct composition : public relationship {
-    static const std::string label;
+    static inline const std::string label{"composition"};
 
     static std::shared_ptr<decorator> from_string(std::string_view c);
 };
 
 struct association : public relationship {
-    static const std::string label;
+    static inline const std::string label{"association"};
 
     static std::shared_ptr<decorator> from_string(std::string_view c);
 };