diff --git a/apps/opencs/model/world/columnimp.hpp b/apps/opencs/model/world/columnimp.hpp
index a24a661cda..91db8d0c41 100644
--- a/apps/opencs/model/world/columnimp.hpp
+++ b/apps/opencs/model/world/columnimp.hpp
@@ -12,6 +12,7 @@
 #include <apps/opencs/model/world/cell.hpp>
 #include <components/esm/defs.hpp>
 #include <components/esm3/loadbody.hpp>
+#include <components/esm3/loaddial.hpp>
 #include <components/esm3/loadinfo.hpp>
 #include <components/esm3/loadrace.hpp>
 #include <components/esm3/loadskil.hpp>
@@ -1342,7 +1343,7 @@ namespace CSMWorld
         {
             ESXRecordT record2 = record.get();
 
-            record2.mType = data.toInt();
+            record2.mType = static_cast<ESM::Dialogue::Type>(data.toInt());
 
             record.setModified(record2);
         }
diff --git a/components/esm3/loaddial.hpp b/components/esm3/loaddial.hpp
index 6c3ec16e71..9fb57aa390 100644
--- a/components/esm3/loaddial.hpp
+++ b/components/esm3/loaddial.hpp
@@ -30,7 +30,7 @@ namespace ESM
         /// Return a string descriptor for this record type. Currently used for debugging / error logs only.
         static std::string_view getRecordType() { return "Dialogue"; }
 
-        enum Type
+        enum Type : std::int8_t
         {
             Topic = 0,
             Voice = 1,
@@ -41,7 +41,7 @@ namespace ESM
         };
 
         RefId mId;
-        signed char mType;
+        Type mType;
         InfoContainer mInfo;
         InfoOrder<DialInfo> mInfoOrder;