diff --git a/java/ql/lib/ext/java.nio.file.model.yml b/java/ql/lib/ext/java.nio.file.model.yml
index 7b151739a07..442eeb630ac 100644
--- a/java/ql/lib/ext/java.nio.file.model.yml
+++ b/java/ql/lib/ext/java.nio.file.model.yml
@@ -17,7 +17,6 @@ extensions:
       - ["java.nio.file", "Files", False, "createTempFile", "(Path,String,String,FileAttribute[])", "", "Argument[0]", "path-injection", "manual"]
       - ["java.nio.file", "Files", False, "delete", "(Path)", "", "Argument[0]", "path-injection", "ai-manual"]
       - ["java.nio.file", "Files", False, "deleteIfExists", "(Path)", "", "Argument[0]", "path-injection", "ai-manual"]
-      - ["java.nio.file", "Files", False, "deleteIfExists", "(Path)", "", "Argument[0]", "path-injection", "ai-manual"]
       - ["java.nio.file", "Files", False, "getFileStore", "(Path)", "", "Argument[0]", "path-injection", "ai-manual"] # the FileStore class is unlikely to be used for later sanitization
       - ["java.nio.file", "Files", False, "lines", "(Path,Charset)", "", "Argument[0]", "path-injection", "ai-manual"]
       - ["java.nio.file", "Files", False, "lines", "(Path)", "", "Argument[0]", "path-injection", "ai-manual"]