diff --git a/jetty-ee10/jetty-ee10-maven-plugin/src/main/java/org/eclipse/jetty/ee10/maven/plugin/AbstractUnassembledWebAppMojo.java b/jetty-ee10/jetty-ee10-maven-plugin/src/main/java/org/eclipse/jetty/ee10/maven/plugin/AbstractUnassembledWebAppMojo.java
index cfe21ec2c22..9cb21a83cba 100644
--- a/jetty-ee10/jetty-ee10-maven-plugin/src/main/java/org/eclipse/jetty/ee10/maven/plugin/AbstractUnassembledWebAppMojo.java
+++ b/jetty-ee10/jetty-ee10-maven-plugin/src/main/java/org/eclipse/jetty/ee10/maven/plugin/AbstractUnassembledWebAppMojo.java
@@ -178,7 +178,7 @@ public abstract class AbstractUnassembledWebAppMojo extends AbstractWebAppMojo
                 Resource r = webApp.getResourceFactory().newResource(webXml.toPath());
                 if (r.exists() && !r.isDirectory())
                 {
-                    webApp.setDescriptor(r.toString());
+                    webApp.setDescriptor(r.getURI().toASCIIString());
                 }
             }
 
@@ -190,7 +190,7 @@ public abstract class AbstractUnassembledWebAppMojo extends AbstractWebAppMojo
                 Resource r = webApp.getBaseResource().resolve("WEB-INF/web.xml");
                 if (r.exists() && !r.isDirectory())
                 {
-                    webApp.setDescriptor(r.toString());
+                    webApp.setDescriptor(r.getURI().toASCIIString());
                 }
             }
 
diff --git a/jetty-ee9/jetty-ee9-maven-plugin/src/main/java/org/eclipse/jetty/ee9/maven/plugin/AbstractUnassembledWebAppMojo.java b/jetty-ee9/jetty-ee9-maven-plugin/src/main/java/org/eclipse/jetty/ee9/maven/plugin/AbstractUnassembledWebAppMojo.java
index 615765ed39f..beb8f26e8d3 100644
--- a/jetty-ee9/jetty-ee9-maven-plugin/src/main/java/org/eclipse/jetty/ee9/maven/plugin/AbstractUnassembledWebAppMojo.java
+++ b/jetty-ee9/jetty-ee9-maven-plugin/src/main/java/org/eclipse/jetty/ee9/maven/plugin/AbstractUnassembledWebAppMojo.java
@@ -166,10 +166,10 @@ public abstract class AbstractUnassembledWebAppMojo extends AbstractWebAppMojo
             //Has an explicit web.xml file been configured to use?
             if (webXml != null)
             {
-                Resource r = ResourceFactory.root().newResource(webXml.toPath());
+                Resource r = webApp.getResourceFactory().newResource(webXml.toPath());
                 if (r.exists() && !r.isDirectory())
                 {
-                    webApp.setDescriptor(r.toString());
+                    webApp.setDescriptor(r.getURI().toASCIIString());
                 }
             }