diff --git a/Stackage/InstallBuild.hs b/Stackage/InstallBuild.hs
index 74c78427..757939a7 100644
--- a/Stackage/InstallBuild.hs
+++ b/Stackage/InstallBuild.hs
@@ -30,6 +30,7 @@ data InstallFlags = InstallFlags
     , ifEnableTests        :: !Bool
     , ifEnableHaddock      :: !Bool
     , ifEnableLibProfiling :: !Bool
+    , ifEnableExecDyn      :: !Bool
     , ifVerbose            :: !Bool
     , ifSkipCheck          :: !Bool
     } deriving (Show)
diff --git a/app/stackage.hs b/app/stackage.hs
index c8bb4f52..57497dfd 100644
--- a/app/stackage.hs
+++ b/app/stackage.hs
@@ -149,6 +149,9 @@ 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") <*>