diff --git a/test/testfiles/external_env.out b/test/testfiles/external_env.out
deleted file mode 100644
index 9c649828af..0000000000
--- a/test/testfiles/external_env.out
+++ /dev/null
@@ -1,8 +0,0 @@
-Testing external file with HDF5_EXTFILE_PREFIX
-Testing with the default file format:
-Testing prefix in HDF5_EXTFILE_PREFIX                                  PASSED
-
-Testing with the latest file format:
-Testing prefix in HDF5_EXTFILE_PREFIX                                  PASSED
-All external storage tests passed.
-Test prefix for HDF5_EXTFILE_PREFIX PASSED