diff --git a/src/main/java/org/javarosa/xform/parse/ExternalInstanceParser.java b/src/main/java/org/javarosa/xform/parse/ExternalInstanceParser.java
index 7cc8abe86..9b70ba5d1 100644
--- a/src/main/java/org/javarosa/xform/parse/ExternalInstanceParser.java
+++ b/src/main/java/org/javarosa/xform/parse/ExternalInstanceParser.java
@@ -15,6 +15,8 @@
 import java.util.ArrayList;
 import java.util.List;
 import java.util.Optional;
+import java.util.stream.Collectors;
+import java.util.stream.Stream;
 
 import static java.util.Arrays.asList;
 
@@ -56,7 +58,10 @@ public void addProcessor(Processor processor) {
      * (via {@link FileInstanceParser#isSupported(String, String)}) first.
      */
     public void addFileInstanceParser(FileInstanceParser fileInstanceParser) {
-        fileInstanceParsers.add(0, fileInstanceParser);
+        fileInstanceParsers = Stream.concat(
+            Stream.of(fileInstanceParser),
+            fileInstanceParsers.stream()
+        ).collect(Collectors.toList());
     }
 
     /**