1 files changed, 2 insertions, 2 deletions
diff --git a/src/main/java/org/zwobble/mammoth/internal/xml/parsing/XmlParser.java b/src/main/java/org/zwobble/mammoth/internal/xml/parsing/XmlParser.java
index c76e989..83e9a1b 100644
--- a/src/main/java/org/zwobble/mammoth/internal/xml/parsing/XmlParser.java
+++ b/src/main/java/org/zwobble/mammoth/internal/xml/parsing/XmlParser.java
@@ -53,8 +53,8 @@ public class XmlParser {
             if (isNullOrEmpty(name.getUri())) {
                 return name.getLocalName();                
             } else {
-                return namespaces.prefixForUri(name.getUri())
-                    .map(prefix -> prefix + ":" + name.getLocalName())
+                return namespaces.lookupUri(name.getUri())
+                    .map(namespace -> namespace.getPrefix().map(prefix -> prefix + ":").orElse("") + name.getLocalName())
                     .orElseGet(() -> "{" + name.getUri() + "}" + name.getLocalName());
             }