4 files changed, 13 insertions, 9 deletions
diff --git a/pkgs/servers/sql/mysql/jdbc/default.nix b/pkgs/servers/sql/mysql/jdbc/default.nix
index 6b22185cd80..7e6422a6f53 100644
--- a/pkgs/servers/sql/mysql/jdbc/default.nix
+++ b/pkgs/servers/sql/mysql/jdbc/default.nix
@@ -1,11 +1,12 @@
 {lib, stdenv, fetchurl, ant, unzip}:
 
 stdenv.mkDerivation rec {
-  name = "mysql-connector-java-5.1.46";
+  pname = "mysql-connector-java";
+  version = "5.1.46";
   builder = ./builder.sh;
 
   src = fetchurl {
-    url = "http://dev.mysql.com/get/Downloads/Connector-J/${name}.zip";
+    url = "http://dev.mysql.com/get/Downloads/Connector-J/${pname}-${version}.zip";
     sha256 = "0dfjshrrx0ndfb6xbdpwhn1f1jkw0km57rgpar0ny8ixmgdnlwnm";
   };
 
diff --git a/pkgs/servers/sql/postgresql/ext/pg_similarity.nix b/pkgs/servers/sql/postgresql/ext/pg_similarity.nix
index e424120a390..a4a8e6b0fe3 100644
--- a/pkgs/servers/sql/postgresql/ext/pg_similarity.nix
+++ b/pkgs/servers/sql/postgresql/ext/pg_similarity.nix
@@ -2,7 +2,8 @@
 
 stdenv.mkDerivation {
 
-  name = "pg_similarity-1.0";
+  pname = "pg_similarity";
+  version = "1.0";
   src = fetchFromGitHub {
     owner = "eulerto";
     repo = "pg_similarity";
diff --git a/pkgs/servers/sql/virtuoso/6.x.nix b/pkgs/servers/sql/virtuoso/6.x.nix
index 4737c0a3894..c811a162412 100644
--- a/pkgs/servers/sql/virtuoso/6.x.nix
+++ b/pkgs/servers/sql/virtuoso/6.x.nix
@@ -1,10 +1,11 @@
 { lib, stdenv, fetchurl, libxml2, openssl, readline, gawk }:
 
 stdenv.mkDerivation rec {
-  name = "virtuoso-opensource-6.1.6";
+  pname = "virtuoso-opensource";
+  version = "6.1.6";
 
   src = fetchurl {
-    url = "mirror://sourceforge/virtuoso/${name}.tar.gz";
+    url = "mirror://sourceforge/virtuoso/${pname}-${version}.tar.gz";
     sha256 = "0dx0lp7cngdchi0772hp93zzn6sdap7z8s3vay3mzb9xgf0sdgy6";
   };
 
@@ -23,7 +24,7 @@ stdenv.mkDerivation rec {
   postInstall = ''
     echo Moving documentation
     mkdir -pv $out/share/doc
-    mv -v $out/share/virtuoso/doc $out/share/doc/${name}
+    mv -v $out/share/virtuoso/doc $out/share/doc/${pname}-${version}
 
     echo Removing jars and empty directories
     find $out -name "*.a" -delete -o -name "*.jar" -delete -o -type d -empty -delete
diff --git a/pkgs/servers/sql/virtuoso/7.x.nix b/pkgs/servers/sql/virtuoso/7.x.nix
index a27cd249f1c..173124596a0 100644
--- a/pkgs/servers/sql/virtuoso/7.x.nix
+++ b/pkgs/servers/sql/virtuoso/7.x.nix
@@ -1,10 +1,11 @@
 { lib, stdenv, fetchurl, libxml2, openssl, readline, gawk }:
 
 stdenv.mkDerivation rec {
-  name = "virtuoso-opensource-7.2.4.2";
+  pname = "virtuoso-opensource";
+  version = "7.2.4.2";
 
   src = fetchurl {
-    url = "mirror://sourceforge/virtuoso/${name}.tar.gz";
+    url = "mirror://sourceforge/virtuoso/${pname}-${version}.tar.gz";
     sha256 = "12dqam1gc1v93l0bj0vlpvjqppki6y1hqrlznywxnw0rrz9pb002";
   };
 
@@ -21,7 +22,7 @@ stdenv.mkDerivation rec {
   postInstall=''
     echo Moving documentation
     mkdir -pv $out/share/doc
-    mv -v $out/share/virtuoso/doc $out/share/doc/${name}
+    mv -v $out/share/virtuoso/doc $out/share/doc/${pname}-${version}
     echo Removing jars and empty directories
     find $out -name "*.a" -delete -o -name "*.jar" -delete -o -type d -empty -delete
     '';