diff --git a/repos/os/src/app/ping/config.xsd b/repos/os/src/app/ping/config.xsd
index 154c376fe6..0ceaca0640 100644
--- a/repos/os/src/app/ping/config.xsd
+++ b/repos/os/src/app/ping/config.xsd
@@ -5,10 +5,10 @@
 		<xs:restriction base="xs:string">
 			<xs:enumeration value="true" />
 			<xs:enumeration value="yes" />
-			<xs:enumeration value="1" />
+			<xs:enumeration value="on" />
 			<xs:enumeration value="false" />
 			<xs:enumeration value="no" />
-			<xs:enumeration value="0" />
+			<xs:enumeration value="off" />
 		</xs:restriction>
 	</xs:simpleType><!-- Boolean -->
 
diff --git a/repos/os/src/app/trace_logger/config.xsd b/repos/os/src/app/trace_logger/config.xsd
index 21987052f7..dbe7bfdaa0 100644
--- a/repos/os/src/app/trace_logger/config.xsd
+++ b/repos/os/src/app/trace_logger/config.xsd
@@ -5,10 +5,10 @@
 		<xs:restriction base="xs:string">
 			<xs:enumeration value="true" />
 			<xs:enumeration value="yes" />
-			<xs:enumeration value="1" />
+			<xs:enumeration value="on" />
 			<xs:enumeration value="false" />
 			<xs:enumeration value="no" />
-			<xs:enumeration value="0" />
+			<xs:enumeration value="off" />
 		</xs:restriction>
 	</xs:simpleType><!-- Boolean -->
 
diff --git a/repos/os/src/server/nic_dump/config.xsd b/repos/os/src/server/nic_dump/config.xsd
index 6bf73cbcf7..ad0e2aafee 100644
--- a/repos/os/src/server/nic_dump/config.xsd
+++ b/repos/os/src/server/nic_dump/config.xsd
@@ -12,10 +12,10 @@
 		<xs:restriction base="xs:string">
 			<xs:enumeration value="true" />
 			<xs:enumeration value="yes" />
-			<xs:enumeration value="1" />
+			<xs:enumeration value="on" />
 			<xs:enumeration value="false" />
 			<xs:enumeration value="no" />
-			<xs:enumeration value="0" />
+			<xs:enumeration value="off" />
 		</xs:restriction>
 	</xs:simpleType><!-- Boolean -->
 
diff --git a/repos/os/src/server/nic_router/config.xsd b/repos/os/src/server/nic_router/config.xsd
index 530425c429..484a084394 100644
--- a/repos/os/src/server/nic_router/config.xsd
+++ b/repos/os/src/server/nic_router/config.xsd
@@ -5,10 +5,10 @@
 		<xs:restriction base="xs:string">
 			<xs:enumeration value="true" />
 			<xs:enumeration value="yes" />
-			<xs:enumeration value="1" />
+			<xs:enumeration value="on" />
 			<xs:enumeration value="false" />
 			<xs:enumeration value="no" />
-			<xs:enumeration value="0" />
+			<xs:enumeration value="off" />
 		</xs:restriction>
 	</xs:simpleType><!-- Boolean -->