diff --git a/src/register/hei_register.hpp b/src/register/hei_register.hpp
index 4514c28..4b5c5fe 100755
--- a/src/register/hei_register.hpp
+++ b/src/register/hei_register.hpp
@@ -37,7 +37,7 @@
      * @param  i_chip Indicates which chip to access for this register.
      * @return A BitString containing the value of this register.
      */
-    virtual const BitString * getBitString(const Chip & i_chip) const = 0;
+    virtual const BitString* getBitString(const Chip& i_chip) const = 0;
 };
 
 // Pure virtual destructor must be defined.