diff --git a/pkgs/servers/sql/postgresql/ext/cstore_fdw.nix b/pkgs/servers/sql/postgresql/ext/cstore_fdw.nix
index a6e2c590f385..54fc891acecd 100644
--- a/pkgs/servers/sql/postgresql/ext/cstore_fdw.nix
+++ b/pkgs/servers/sql/postgresql/ext/cstore_fdw.nix
@@ -26,7 +26,7 @@ stdenv.mkDerivation rec {
     description = "Columnar storage for PostgreSQL";
     homepage    = https://www.citusdata.com/;
     maintainers = with maintainers; [ thoughtpolice ];
-    platforms   = platforms.linux;
+    platforms   = postgresql.meta.platforms;
     license     = licenses.asl20;
   };
 }
diff --git a/pkgs/servers/sql/postgresql/ext/pg_hll.nix b/pkgs/servers/sql/postgresql/ext/pg_hll.nix
index f91a8b1bf252..16104e66b734 100644
--- a/pkgs/servers/sql/postgresql/ext/pg_hll.nix
+++ b/pkgs/servers/sql/postgresql/ext/pg_hll.nix
@@ -25,7 +25,7 @@ stdenv.mkDerivation rec {
     description = "HyperLogLog for PostgreSQL";
     homepage    = https://www.citusdata.com/;
     maintainers = with maintainers; [ thoughtpolice ];
-    platforms   = platforms.linux;
+    platforms   = postgresql.meta.platforms;
     license     = licenses.asl20;
   };
 }
diff --git a/pkgs/servers/sql/postgresql/ext/pg_similarity.nix b/pkgs/servers/sql/postgresql/ext/pg_similarity.nix
index 32945c9fa62b..ee50bee033b3 100644
--- a/pkgs/servers/sql/postgresql/ext/pg_similarity.nix
+++ b/pkgs/servers/sql/postgresql/ext/pg_similarity.nix
@@ -24,7 +24,7 @@ stdenv.mkDerivation {
        is tightly integrated in the RDBMS in the sense that it defines operators so instead of the traditional
        operators (= and <>) you can use ~~~ and ~!~ (any of these operators represents a similarity function).
     '';
-    platforms = stdenv.lib.platforms.linux;
+    platforms = postgresql.meta.platforms;
     license = stdenv.lib.licenses.gpl2;
     maintainers = with lib.maintainers; [ danbst ];
   };
diff --git a/pkgs/servers/sql/postgresql/ext/pg_topn.nix b/pkgs/servers/sql/postgresql/ext/pg_topn.nix
index 8ec2d6719a4e..1c1f3dcb87ed 100644
--- a/pkgs/servers/sql/postgresql/ext/pg_topn.nix
+++ b/pkgs/servers/sql/postgresql/ext/pg_topn.nix
@@ -25,7 +25,7 @@ stdenv.mkDerivation rec {
     description = "Efficient querying of 'top values' for PostgreSQL";
     homepage    = https://github.com/citusdata/postgresql-topn;
     maintainers = with maintainers; [ thoughtpolice ];
-    platforms   = platforms.linux;
+    platforms   = postgresql.meta.platforms;
     license     = licenses.agpl3;
   };
 }
diff --git a/pkgs/servers/sql/postgresql/ext/tds_fdw.nix b/pkgs/servers/sql/postgresql/ext/tds_fdw.nix
index dbffab79a13e..4b321bbbc4fb 100644
--- a/pkgs/servers/sql/postgresql/ext/tds_fdw.nix
+++ b/pkgs/servers/sql/postgresql/ext/tds_fdw.nix
@@ -23,7 +23,7 @@ stdenv.mkDerivation rec {
     description = "A PostgreSQL foreign data wrapper to connect to TDS databases (Sybase and Microsoft SQL Server)";
     homepage    = https://github.com/tds-fdw/tds_fdw;
     maintainers = [ maintainers.steve-chavez ];
-    platforms   = platforms.linux;
+    platforms   = postgresql.meta.platforms;
     license     = licenses.postgresql;
   };
 }