diff --git a/include/cantera/kinetics/AqueousKinetics.h b/include/cantera/kinetics/AqueousKinetics.h
index 77f76a1ac..f8e52e0da 100644
--- a/include/cantera/kinetics/AqueousKinetics.h
+++ b/include/cantera/kinetics/AqueousKinetics.h
@@ -35,6 +35,7 @@ class ReactionData;
  *   Concentration
  *
  * @ingroup kinetics
+ * @deprecated Not actually implemented
  */
 class AqueousKinetics : public Kinetics
 {
diff --git a/src/kinetics/AqueousKinetics.cpp b/src/kinetics/AqueousKinetics.cpp
index 5e5978f2c..cde69ce45 100644
--- a/src/kinetics/AqueousKinetics.cpp
+++ b/src/kinetics/AqueousKinetics.cpp
@@ -30,6 +30,8 @@ AqueousKinetics::AqueousKinetics(thermo_t* thermo) :
     m_temp(0.0),
     m_finalized(false)
 {
+    warn_deprecated("AqueousKinetics",
+                    "Unfinished implementation of this class will be removed.");
     if (thermo != 0) {
         addPhase(*thermo);
     }