diff --git a/qserv/src/main/java/de/hsadmin/mods/dom/Domain.java b/qserv/src/main/java/de/hsadmin/mods/dom/Domain.java
index 27afbd8..abce2b5 100644
--- a/qserv/src/main/java/de/hsadmin/mods/dom/Domain.java
+++ b/qserv/src/main/java/de/hsadmin/mods/dom/Domain.java
@@ -212,7 +212,7 @@ public class Domain extends AbstractEntity {
 	}
 
 	public void setPassengerPython(String value) {
-		passengerpython = value;
+		this.passengerpython = value;
 	}
 
 	public String getPassengerNodejs() {
@@ -220,7 +220,7 @@ public class Domain extends AbstractEntity {
 	}
 
 	public void setPassengerNodejs(String value) {
-		passengernodejs = value;
+		this.passengernodejs = value;
 	}
 
 	public String getPassengerRuby() {
@@ -228,7 +228,7 @@ public class Domain extends AbstractEntity {
 	}
 
 	public void setPassengerRuby(String value) {
-		passengerruby = value;
+		this.passengerruby = value;
 	}
 
 	public String getFcgiPhpBin() {
@@ -236,7 +236,7 @@ public class Domain extends AbstractEntity {
 	}
 
 	public void setFcgiPhpBin(String value) {
-		fcgiphpbin = value;
+		this.fcgiphpbin = value;
 	}
 
 	public String getServeraliases() {