diff --git a/IHP/SchemaCompiler.hs b/IHP/SchemaCompiler.hs
index 0a4896545..4c137d1e7 100644
--- a/IHP/SchemaCompiler.hs
+++ b/IHP/SchemaCompiler.hs
@@ -142,6 +142,7 @@ compileTypes options schema@(Schema statements) =
                   <> "import qualified Database.PostgreSQL.Simple.Types\n"
                   <> "import IHP.Job.Types\n"
                   <> "import IHP.Job.Queue ()\n"
+                  <> "import qualified Control.DeepSeq as DeepSeq\n"
                   <> "import qualified Data.Dynamic\n"
                   <> "import Data.Scientific\n"
 
@@ -339,6 +340,7 @@ compileEnumDataDefinitions enum@(CreateEnumType { name, values }) =
         <> "instance Default " <> modelName <> " where def = " <> enumValueToConstructorName (unsafeHead values) <> "\n"
         <> "instance ToField " <> modelName <> " where\n" <> indent (unlines (map compileToFieldInstanceForValue values))
         <> "instance InputValue " <> modelName <> " where\n" <> indent (unlines (map compileInputValue values)) <> "\n"
+        <> "instance DeepSeq.NFData " <> modelName <> " where\n" <> indent ("rnf a = ()") <> "\n"
         <> "instance IHP.Controller.Param.ParamReader " <> modelName <> " where readParameter = IHP.Controller.Param.enumParamReader; readParameterJSON = IHP.Controller.Param.enumParamReaderJSON\n"
     where
         modelName = tableNameToModelName name