diff --git a/lib/galaxy/datatypes/sequence.py b/lib/galaxy/datatypes/sequence.py
index 89249bf5432..97196fac3da 100644
--- a/lib/galaxy/datatypes/sequence.py
+++ b/lib/galaxy/datatypes/sequence.py
@@ -714,7 +714,7 @@ class BaseFastq(Sequence):
         True
         >>> FastqCSSanger().sniff(fname)
         True
-        >>> fname = get_test_fname('2.fastqsanger')
+        >>> fname = get_test_fname('4.fastqsanger')
         >>> FastqSanger().sniff(fname)
         True
         """
diff --git a/lib/galaxy/datatypes/test/2.fastqsanger b/lib/galaxy/datatypes/test/4.fastqsanger
similarity index 100%
rename from lib/galaxy/datatypes/test/2.fastqsanger
rename to lib/galaxy/datatypes/test/4.fastqsanger