diff --git a/pkgs/development/libraries/haskell/funcmp/default.nix b/pkgs/development/libraries/haskell/funcmp/default.nix
index f6893cc37975..ed68f0cc1fe6 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 b27ff78d8f95..3d873dc20737 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 aab6530fcc99..af5fddda1c06 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 36a320dbe687..c6dd1c6a5683 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 36080e9044e6..88799c9318aa 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 ];
   };
 })