diff --git a/pkgs/applications/inferno/default.nix b/pkgs/applications/inferno/default.nix
index 6a1a3be27dd5..c5a40fcbf5b3 100644
--- a/pkgs/applications/inferno/default.nix
+++ b/pkgs/applications/inferno/default.nix
@@ -58,7 +58,7 @@ stdenv.mkDerivation rec {
     description = "A compact distributed operating system for building cross-platform distributed systems";
     homepage = "http://inferno-os.org/";
     license = stdenv.lib.licenses.gpl2;
-    maintainer = [ "Chris Double <chris.double@double.co.nz>" ];
+    maintainers = [ "Chris Double <chris.double@double.co.nz>" ];
     platforms = with stdenv.lib.platforms; linux;
   };
 }
diff --git a/pkgs/applications/misc/makeself/default.nix b/pkgs/applications/misc/makeself/default.nix
index e433b83cdeb5..3ba0faef9682 100644
--- a/pkgs/applications/misc/makeself/default.nix
+++ b/pkgs/applications/misc/makeself/default.nix
@@ -19,7 +19,7 @@ stdenv.mkDerivation rec {
     homepage = http://megastep.org/makeself;
     description = "Utility to create self-extracting packages";
     license = licenses.gpl2;
-    maintainer = maintainers.wmertens;
+    maintainers = [ maintainers.wmertens ];
     platforms = platforms.all;
   };
 }
diff --git a/pkgs/development/libraries/libnm-qt/default.nix b/pkgs/development/libraries/libnm-qt/default.nix
index 31afcae8e01a..44c8b406e459 100644
--- a/pkgs/development/libraries/libnm-qt/default.nix
+++ b/pkgs/development/libraries/libnm-qt/default.nix
@@ -27,6 +27,6 @@ stdenv.mkDerivation {
     description = "Qt wrapper for NetworkManager DBus API";
     license = licenses.lgpl21;
     platforms = platforms.linux;
-    maintainer = [ maintainers.jgeerds ];
+    maintainers = [ maintainers.jgeerds ];
   };
 }
diff --git a/pkgs/tools/X11/nitrogen/default.nix b/pkgs/tools/X11/nitrogen/default.nix
index 182c058e1c12..dd8b496fe66e 100644
--- a/pkgs/tools/X11/nitrogen/default.nix
+++ b/pkgs/tools/X11/nitrogen/default.nix
@@ -27,6 +27,6 @@ stdenv.mkDerivation rec {
     homepage = http://projects.l3ib.org/nitrogen/;
     license = stdenv.lib.licenses.gpl2;
     platforms = stdenv.lib.platforms.linux;
-    maintainer = [ stdenv.lib.maintainers.auntie ];
+    maintainers = [ stdenv.lib.maintainers.auntie ];
   };
 }
diff --git a/pkgs/tools/system/evemu/default.nix b/pkgs/tools/system/evemu/default.nix
index 84fdbee90fa4..90833b83683d 100644
--- a/pkgs/tools/system/evemu/default.nix
+++ b/pkgs/tools/system/evemu/default.nix
@@ -32,6 +32,6 @@ stdenv.mkDerivation rec {
     homepage = http://www.freedesktop.org/wiki/Evemu/;
     repositories.git = git://git.freedesktop.org/git/evemu;
     license = licenses.gpl2;
-    maintainer = [ maintainers.amorsillo ];
+    maintainers = [ maintainers.amorsillo ];
   };
 }
diff --git a/pkgs/tools/system/monit/default.nix b/pkgs/tools/system/monit/default.nix
index 8e4848f2db62..41a94ff2f2e3 100644
--- a/pkgs/tools/system/monit/default.nix
+++ b/pkgs/tools/system/monit/default.nix
@@ -20,6 +20,6 @@ stdenv.mkDerivation rec {
     homepage = http://mmonit.com/monit/;
     description = "Monitoring system";
     license = stdenv.lib.licenses.agpl3;
-    maintainer = with stdenv.lib.maintainers; [ raskin wmertens ];
+    maintainers = with stdenv.lib.maintainers; [ raskin wmertens ];
   };
 }