diff --git a/tests/data/test448 b/tests/data/test448
index 0e257e7049..108ead9b59 100644
--- a/tests/data/test448
+++ b/tests/data/test448
@@ -35,7 +35,6 @@ http
 <setenv>
 FUNVALUE=contents
 VALUE2=curl
-BLANK=
 </setenv>
 <name>
 Environment variables within config file, unbalanced braces
diff --git a/tests/data/test449 b/tests/data/test449
index 5981996025..73c9677281 100644
--- a/tests/data/test449
+++ b/tests/data/test449
@@ -36,6 +36,7 @@ http
 FUNVALUE=contents
 VALUE2=curl
 BLANK=
+CURL_NOT_SET
 </setenv>
 <name>
 Environment variables in config file w/o [expand]
diff --git a/tests/data/test458 b/tests/data/test458
index ce37945413..58e7052264 100644
--- a/tests/data/test458
+++ b/tests/data/test458
@@ -34,7 +34,6 @@ http
 <setenv>
 FUNVALUE=contents%TESTNUMBER
 VALUE2=curl
-BLANK=
 </setenv>
 <name>
 variable expand the file name with --expand-output