diff --git a/instructionAPI/h/Register.h b/instructionAPI/h/Register.h
index 4af8141021..f9d50e3bb4 100644
--- a/instructionAPI/h/Register.h
+++ b/instructionAPI/h/Register.h
@@ -77,7 +77,7 @@ namespace Dyninst
       /// The \c format method on a %RegisterAST object returns the name associated with its ID.
       virtual std::string format(ArchSpecificFormatter *, formatStyle how = defaultStyle) const;
       /// The \c format method on a %RegisterAST object returns the name associated with its ID.
-      virtual std::string format(formatStyle how = defaultStyle) const __attribute__ ((deprecated));
+      virtual std::string format(formatStyle how = defaultStyle) const;
 
       /// Utility function to get a Register object that represents the program counter.
       ///