diff --git a/tests/data/test1400 b/tests/data/test1400
index 190a09338e..ee7a4d4ed4 100644
--- a/tests/data/test1400
+++ b/tests/data/test1400
@@ -31,7 +31,7 @@ http
 --libcurl for simple HTTP GET
 </name>
 <setenv>
-SSL_CERT_FILE=
+SSL_CERT_FILE
 </setenv>
 <command>
 http://%HOSTIP:%HTTPPORT/we/want/%TESTNUMBER --libcurl %LOGDIR/test%TESTNUMBER.c
diff --git a/tests/data/test1401 b/tests/data/test1401
index 0356697c94..265d99e3eb 100644
--- a/tests/data/test1401
+++ b/tests/data/test1401
@@ -39,7 +39,7 @@ cookies
 --libcurl
 </features>
 <setenv>
-SSL_CERT_FILE=
+SSL_CERT_FILE
 </setenv>
 <command>
 http://%HOSTIP:%HTTPPORT/we/want/%TESTNUMBER --libcurl %LOGDIR/test%TESTNUMBER.c --basic -u fake:user -H "X-Files: Mulder" -H "X-Men: cyclops, iceman" -A MyUA -b chocolate=chip --proto "=http,ftp,file"
diff --git a/tests/data/test1402 b/tests/data/test1402
index fe81e45f3f..0c084d2878 100644
--- a/tests/data/test1402
+++ b/tests/data/test1402
@@ -32,7 +32,7 @@ http
 --libcurl for simple POST
 </name>
 <setenv>
-SSL_CERT_FILE=
+SSL_CERT_FILE
 </setenv>
 <command>
 http://%HOSTIP:%HTTPPORT/we/want/%TESTNUMBER --libcurl %LOGDIR/test%TESTNUMBER.c -d "foo=bar" -d "baz=quux"
diff --git a/tests/data/test1403 b/tests/data/test1403
index 1141a200cf..643f4424b8 100644
--- a/tests/data/test1403
+++ b/tests/data/test1403
@@ -32,7 +32,7 @@ http
 --libcurl for GET with query
 </name>
 <setenv>
-SSL_CERT_FILE=
+SSL_CERT_FILE
 </setenv>
 <command>
 http://%HOSTIP:%HTTPPORT/we/want/%TESTNUMBER --libcurl %LOGDIR/test%TESTNUMBER.c -G -d "foo=bar" -d "baz=quux"
diff --git a/tests/data/test1404 b/tests/data/test1404
index 58bff51e17..aa88eed496 100644
--- a/tests/data/test1404
+++ b/tests/data/test1404
@@ -34,7 +34,7 @@ http
 --libcurl plus -F with 3 files, one with explicit type & encoder
 </name>
 <setenv>
-SSL_CERT_FILE=
+SSL_CERT_FILE
 </setenv>
 <command>
 http://%HOSTIP:%HTTPPORT/we/want/%TESTNUMBER -F name=value -F 'file=@%LOGDIR/test%TESTNUMBER.txt,%LOGDIR/test%TESTNUMBER.txt;type=magic/content;encoder=8bit,%LOGDIR/test%TESTNUMBER.txt;headers=X-testheader-1: header 1;headers=X-testheader-2: header 2' --libcurl %LOGDIR/test%TESTNUMBER.c
diff --git a/tests/data/test1405 b/tests/data/test1405
index cfed433d92..ff95450f5c 100644
--- a/tests/data/test1405
+++ b/tests/data/test1405
@@ -36,7 +36,7 @@ ftp
 --libcurl for FTP with quote ops
 </name>
 <setenv>
-SSL_CERT_FILE=
+SSL_CERT_FILE
 </setenv>
 <command>
 ftp://%HOSTIP:%FTPPORT/%TESTNUMBER -Q "NOOP 1" -Q "+NOOP 2" -Q "-NOOP 3" -Q "*FAIL" -Q "+*FAIL HARD" --libcurl %LOGDIR/test%TESTNUMBER.c
diff --git a/tests/data/test1406 b/tests/data/test1406
index 87b1615318..6f734aa8a7 100644
--- a/tests/data/test1406
+++ b/tests/data/test1406
@@ -26,7 +26,7 @@ smtp
 --libcurl for SMTP
 </name>
 <setenv>
-SSL_CERT_FILE=
+SSL_CERT_FILE
 </setenv>
 <file name="%LOGDIR/test%TESTNUMBER.eml">
 From: different
diff --git a/tests/data/test1407 b/tests/data/test1407
index 4cf5629a84..09d8702c28 100644
--- a/tests/data/test1407
+++ b/tests/data/test1407
@@ -27,7 +27,7 @@ pop3
 --libcurl for POP3 LIST one message
 </name>
 <setenv>
-SSL_CERT_FILE=
+SSL_CERT_FILE
 </setenv>
 <command>
 pop3://%HOSTIP:%POP3PORT/%TESTNUMBER -l -u user:secret --libcurl %LOGDIR/test%TESTNUMBER.c
diff --git a/tests/data/test1420 b/tests/data/test1420
index d334516d07..f93db9d5c7 100644
--- a/tests/data/test1420
+++ b/tests/data/test1420
@@ -33,7 +33,7 @@ imap
 --libcurl for IMAP FETCH message
 </name>
 <setenv>
-SSL_CERT_FILE=
+SSL_CERT_FILE
 </setenv>
 <command>
 'imap://%HOSTIP:%IMAPPORT/%TESTNUMBER/;MAILINDEX=1' -u user:secret --libcurl %LOGDIR/test%TESTNUMBER.c
diff --git a/tests/data/test1465 b/tests/data/test1465
index 53592cc1fb..786d98c5a6 100644
--- a/tests/data/test1465
+++ b/tests/data/test1465
@@ -29,7 +29,7 @@ http
 --libcurl for POST with binary content
 </name>
 <setenv>
-SSL_CERT_FILE=
+SSL_CERT_FILE
 </setenv>
 <command>
 http://%HOSTIP:%HTTPPORT/we/want/%TESTNUMBER --libcurl %LOGDIR/test%TESTNUMBER.c --data-binary @%LOGDIR/%TESTNUMBER-upload
diff --git a/tests/data/test1481 b/tests/data/test1481
index 85fc8359bd..b6793a3bad 100644
--- a/tests/data/test1481
+++ b/tests/data/test1481
@@ -33,7 +33,7 @@ SSL
 --libcurl with TLS version options
 </name>
 <setenv>
-SSL_CERT_FILE=
+SSL_CERT_FILE
 </setenv>
 <command>
 http://moo/ --libcurl %LOGDIR/test%TESTNUMBER.c --tls-max 1.3 --proxy-tlsv1 -x http://%HOSTIP:%HTTPPORT