diff --git a/Stackage/CompleteBuild.hs b/Stackage/CompleteBuild.hs
index 62a7634e..ab9c3a3b 100644
--- a/Stackage/CompleteBuild.hs
+++ b/Stackage/CompleteBuild.hs
@@ -36,6 +36,7 @@ data BuildFlags = BuildFlags
     , bfEnableHaddock    :: !Bool
     , bfDoUpload         :: !Bool
     , bfEnableLibProfile :: !Bool
+    , bfEnableExecDyn    :: !Bool
     , bfVerbose          :: !Bool
     , bfSkipCheck        :: !Bool
     } deriving (Show)
diff --git a/app/stackage.hs b/app/stackage.hs
index 57497dfd..1b9583c7 100644
--- a/app/stackage.hs
+++ b/app/stackage.hs
@@ -90,6 +90,9 @@ main =
         switch
             (long "enable-library-profiling" <>
              help "Enable profiling when building") <*>
+        switch
+            (long "enable-executable-dynamic" <>
+             help "Enable dynamic executables when building") <*>
         switch
             (long "verbose" <> short 'v' <>
              help "Output verbose detail about the build steps") <*>