diff --git a/modules/mol/base/src/impl/residue_impl.hh b/modules/mol/base/src/impl/residue_impl.hh
index 21b3bcc9cc093558ed4d433fabb265d6117615bc..ee47bdbb291afb5c6dc4d5124004d4650d0a71a1 100644
--- a/modules/mol/base/src/impl/residue_impl.hh
+++ b/modules/mol/base/src/impl/residue_impl.hh
@@ -113,7 +113,7 @@ public:
   ///
   /// If no isp torsion has been assigned to this residue an invalid
   /// TorsionImplP will be returned.
-  TorsionImplP ResidueImpl::GetOmegaTorsion() const;
+  TorsionImplP GetOmegaTorsion() const;
   /// \brief Get psi torsion
   ///
   /// If no psi torsion has been assigned to this residue an invalid