src/jdk.jextract/share/classes/com/sun/tools/jextract/JavaSourceFactory.java

@@ -380,10 +380,10 @@
         }
         String name = macroTree.name();
         MacroParser.Macro macro = macroTree.macro().get();
         log.print(Level.FINE, () -> "Adding macro " + name);
 
-        addConstant(global_jsb, macroTree.location(), name, macro.type(), macro.value());
+        addConstant(global_jsb, macroTree.location(), Utils.toMacroName(name), macro.type(), macro.value());
 
         return true;
     }
 }