diff --git a/apps/openmw/mwdialogue/filter.cpp b/apps/openmw/mwdialogue/filter.cpp
index 5161ea5ed6..bded2aaec6 100644
--- a/apps/openmw/mwdialogue/filter.cpp
+++ b/apps/openmw/mwdialogue/filter.cpp
@@ -128,6 +128,7 @@ bool MWDialogue::Filter::testSelectStruct (const SelectWrapper& select) const
         case SelectWrapper::Type_None: return true;
         case SelectWrapper::Type_Integer: return select.selectCompare (getSelectStructInteger (select));
         case SelectWrapper::Type_Numeric: return testSelectStructNumeric (select);
+        case SelectWrapper::Type_Boolean: return select.selectCompare (getSelectStructBoolean (select));
     }
     
     return true;
@@ -153,6 +154,16 @@ int MWDialogue::Filter::getSelectStructInteger (const SelectWrapper& select) con
     }
 }
 
+bool MWDialogue::Filter::getSelectStructBoolean (const SelectWrapper& select) const
+{
+    switch (select.getFunction())
+    {
+        default:
+
+            throw std::runtime_error ("unknown boolean select function");
+    }
+}
+
 MWDialogue::Filter::Filter (const MWWorld::Ptr& actor) : mActor (actor) {}
 
 bool MWDialogue::Filter::operator() (const ESM::DialInfo& info) const
diff --git a/apps/openmw/mwdialogue/filter.hpp b/apps/openmw/mwdialogue/filter.hpp
index 2b8410941e..4263920cb2 100644
--- a/apps/openmw/mwdialogue/filter.hpp
+++ b/apps/openmw/mwdialogue/filter.hpp
@@ -30,6 +30,8 @@ namespace MWDialogue
             bool testSelectStructNumeric (const SelectWrapper& select) const;
             
             int getSelectStructInteger (const SelectWrapper& select) const;
+            
+            bool getSelectStructBoolean (const SelectWrapper& select) const;
     
         public:
         
diff --git a/apps/openmw/mwdialogue/selectwrapper.cpp b/apps/openmw/mwdialogue/selectwrapper.cpp
index 704c4c7ef2..4e740c62f5 100644
--- a/apps/openmw/mwdialogue/selectwrapper.cpp
+++ b/apps/openmw/mwdialogue/selectwrapper.cpp
@@ -65,3 +65,8 @@ bool MWDialogue::SelectWrapper::selectCompare (float value) const
 {
     return selectCompareImp (mSelect, value)!=IsInverted(); // logic XOR
 }
+
+bool MWDialogue::SelectWrapper::selectCompare (bool value) const
+{
+    return selectCompareImp (mSelect, static_cast<int> (value))!=IsInverted(); // logic XOR
+}
diff --git a/apps/openmw/mwdialogue/selectwrapper.hpp b/apps/openmw/mwdialogue/selectwrapper.hpp
index c4d954d533..f1ac252097 100644
--- a/apps/openmw/mwdialogue/selectwrapper.hpp
+++ b/apps/openmw/mwdialogue/selectwrapper.hpp
@@ -20,7 +20,8 @@ namespace MWDialogue
             {
                 Type_None,
                 Type_Integer,
-                Type_Numeric
+                Type_Numeric,
+                Type_Boolean
             };
     
         public:
@@ -36,6 +37,8 @@ namespace MWDialogue
             bool selectCompare (int value) const;
 
             bool selectCompare (float value) const;
+            
+            bool selectCompare (bool value) const;
     };
 }