diff --git a/include/cantera/base/global.h b/include/cantera/base/global.h
index 5e2cb1101..d4c743b3e 100644
--- a/include/cantera/base/global.h
+++ b/include/cantera/base/global.h
@@ -335,8 +335,9 @@ void error(const std::string& msg);
  *  class logger and inherited classes of logger.
  *
  *   @ingroup textlogs
+ *   @deprecated
  */
-int userInterface();
+DEPRECATED(int userInterface());
 
 //! Install a logger.
 /*!
diff --git a/include/cantera/base/logger.h b/include/cantera/base/logger.h
index 5384e0132..91740e079 100644
--- a/include/cantera/base/logger.h
+++ b/include/cantera/base/logger.h
@@ -6,6 +6,8 @@
 #ifndef CT_LOGGER_H
 #define CT_LOGGER_H
 
+#include "ct_defs.h"
+
 #include <iostream>
 #include <string>
 #include <cstdlib>
@@ -87,7 +89,8 @@ public:
     }
 
     /// Return an integer specifying the application environment.
-    virtual int env() {
+    /// @deprecated
+    DEPRECATED(virtual int env()) {
         return 0;
     }
 };
diff --git a/src/base/application.h b/src/base/application.h
index f560cb2e1..89d072af0 100644
--- a/src/base/application.h
+++ b/src/base/application.h
@@ -174,7 +174,8 @@ protected:
         void logerror(const std::string& msg) ;
 
         //! Returns an integer specifying the application environment
-        int getUserEnv() ;
+        //! @deprecated
+        DEPRECATED(int getUserEnv()) ;
 
         //! Install a logger.
         /*!
@@ -581,7 +582,8 @@ public:
     }
 
     //! Returns an integer specifying the application environment.
-    int getUserEnv() {
+    //! @deprecated
+    DEPRECATED(int getUserEnv()) {
         return pMessenger->getUserEnv() ;
     }
 
diff --git a/src/matlab/mllogger.h b/src/matlab/mllogger.h
index d1fc8ddcd..e2016c7b8 100644
--- a/src/matlab/mllogger.h
+++ b/src/matlab/mllogger.h
@@ -51,7 +51,7 @@ public:
         mexErrMsgTxt(err.c_str());
     }
 
-    virtual int env() {
+    DEPRECATED(virtual int env()) {
         return 1;
     }
 };
diff --git a/src/python/pylogger.h b/src/python/pylogger.h
index be0c18376..f950ce244 100644
--- a/src/python/pylogger.h
+++ b/src/python/pylogger.h
@@ -39,7 +39,7 @@ public:
         PyRun_SimpleString((char*)err.c_str());
     }
 
-    virtual int env() {
+    DEPRECATED(virtual int env()) {
         return 2;
     }
 };