diff --git a/etc/xsd/TPD.xsd b/etc/xsd/TPD.xsd
index 2e38bea543819077a74ebb5d627aada14601dd4c..6c278f737a0924ce487d807493099342f6528dfd 100644
--- a/etc/xsd/TPD.xsd
+++ b/etc/xsd/TPD.xsd
@@ -68,7 +68,7 @@
                       </xs:simpleType>
                     </xs:element>
                     <xs:element name="targetExecutable" minOccurs="0" maxOccurs="1" type="xs:normalizedString" />
-					<xs:element name="TTCN3preprocessor" minOccurs="0" maxOccurs="1" type="xs:normalizedString" />
+                    <xs:element name="TTCN3preprocessor" minOccurs="0" maxOccurs="1" type="xs:normalizedString" />
                     <xs:element name="TTCN3preprocessorDefines" minOccurs="0" maxOccurs="1">
                       <xs:complexType>
                         <xs:sequence>
@@ -76,7 +76,7 @@
                         </xs:sequence>
                       </xs:complexType>
                     </xs:element>
-					<xs:element name="TTCN3preprocessorUndefines" minOccurs="0" maxOccurs="1">
+                    <xs:element name="TTCN3preprocessorUndefines" minOccurs="0" maxOccurs="1">
                       <xs:complexType>
                         <xs:sequence>
                           <xs:element name="listItem" minOccurs="1" maxOccurs="unbounded" type="xs:normalizedString" />
@@ -90,7 +90,7 @@
                         </xs:sequence>
                       </xs:complexType>
                     </xs:element>
-					<xs:element name="preprocessorUndefines" minOccurs="0" maxOccurs="1">
+                    <xs:element name="preprocessorUndefines" minOccurs="0" maxOccurs="1">
                       <xs:complexType>
                         <xs:sequence>
                           <xs:element name="listItem" minOccurs="1" maxOccurs="unbounded" type="xs:normalizedString" />
diff --git a/usrguide/referenceguide.doc b/usrguide/referenceguide.doc
index 6453ceeca1db3670bcc26783d85bfa10dbe03f43..7f9c5028155fd4f17ff360808284ef82b7a2af42 100644
Binary files a/usrguide/referenceguide.doc and b/usrguide/referenceguide.doc differ