diff --git a/pkgs/development/libraries/haskell/funcmp/default.nix b/pkgs/development/libraries/haskell/funcmp/default.nix
index f6893cc3797..ed68f0cc1fe 100644
--- a/pkgs/development/libraries/haskell/funcmp/default.nix
+++ b/pkgs/development/libraries/haskell/funcmp/default.nix
@@ -10,6 +10,6 @@ cabal.mkDerivation (self: {
     description = "Functional MetaPost";
     license = "GPL";
     platforms = self.ghc.meta.platforms;
-    maintainers = [ self.stdenv.lib.maintainers.andres ];
+    maintainers = [ self.stdenv.lib.maintainers.andres self.stdenv.lib.maintainers.simons ];
   };
 })
diff --git a/pkgs/development/libraries/haskell/hackage-db/default.nix b/pkgs/development/libraries/haskell/hackage-db/default.nix
index b27ff78d8f9..3d873dc2073 100644
--- a/pkgs/development/libraries/haskell/hackage-db/default.nix
+++ b/pkgs/development/libraries/haskell/hackage-db/default.nix
@@ -10,6 +10,6 @@ cabal.mkDerivation (self: {
     description = "provide access to the Hackage database via Data.Map";
     license = self.stdenv.lib.licenses.bsd3;
     platforms = self.ghc.meta.platforms;
-    maintainers = [ self.stdenv.lib.maintainers.andres ];
+    maintainers = [ self.stdenv.lib.maintainers.andres self.stdenv.lib.maintainers.simons ];
   };
 })
diff --git a/pkgs/development/libraries/haskell/hsdns/default.nix b/pkgs/development/libraries/haskell/hsdns/default.nix
index aab6530fcc9..af5fddda1c0 100644
--- a/pkgs/development/libraries/haskell/hsdns/default.nix
+++ b/pkgs/development/libraries/haskell/hsdns/default.nix
@@ -12,6 +12,6 @@ cabal.mkDerivation (self: {
     description = "Asynchronous DNS Resolver";
     license = "LGPL";
     platforms = self.ghc.meta.platforms;
-    maintainers = [ self.stdenv.lib.maintainers.andres ];
+    maintainers = [ self.stdenv.lib.maintainers.andres self.stdenv.lib.maintainers.simons ];
   };
 })
diff --git a/pkgs/development/libraries/haskell/hsemail/default.nix b/pkgs/development/libraries/haskell/hsemail/default.nix
index 36a320dbe68..c6dd1c6a568 100644
--- a/pkgs/development/libraries/haskell/hsemail/default.nix
+++ b/pkgs/development/libraries/haskell/hsemail/default.nix
@@ -10,6 +10,6 @@ cabal.mkDerivation (self: {
     description = "Internet Message Parsers";
     license = self.stdenv.lib.licenses.bsd3;
     platforms = self.ghc.meta.platforms;
-    maintainers = [ self.stdenv.lib.maintainers.andres ];
+    maintainers = [ self.stdenv.lib.maintainers.andres self.stdenv.lib.maintainers.simons ];
   };
 })
diff --git a/pkgs/development/libraries/haskell/streamproc/default.nix b/pkgs/development/libraries/haskell/streamproc/default.nix
index 36080e9044e..88799c9318a 100644
--- a/pkgs/development/libraries/haskell/streamproc/default.nix
+++ b/pkgs/development/libraries/haskell/streamproc/default.nix
@@ -9,6 +9,6 @@ cabal.mkDerivation (self: {
     description = "Stream Processer Arrow";
     license = self.stdenv.lib.licenses.bsd3;
     platforms = self.ghc.meta.platforms;
-    maintainers = [ self.stdenv.lib.maintainers.andres ];
+    maintainers = [ self.stdenv.lib.maintainers.andres self.stdenv.lib.maintainers.simons ];
   };
 })