diff --git a/tests/data/test252 b/tests/data/test252
index 99d021a6e135a0cf2d07d11443880d0e728b782d..b3f4966a120e647ff07e2fdfff747ff56aed210e 100644
--- a/tests/data/test252
+++ b/tests/data/test252
@@ -2,6 +2,7 @@
 <info>
 <keywords>
 FTP-ipv6
+IPv6
 EPSV
 </keywords>
 </info>
diff --git a/tests/data/test253 b/tests/data/test253
index 7da7211872fefdc05668938e79bfdc6915d138ab..9be5f3d60947d835b2165bdba38a80bf9e832abc 100644
--- a/tests/data/test253
+++ b/tests/data/test253
@@ -2,6 +2,7 @@
 <info>
 <keywords>
 FTP-ipv6
+IPv6
 EPRT
 </keywords>
 </info>
diff --git a/tests/data/test254 b/tests/data/test254
index 19ae36389c48bc8290bf70ace37dfd9eb4b2b731..571b033f7b20eb6d948c08f0a6d6bb17eb7609e5 100644
--- a/tests/data/test254
+++ b/tests/data/test254
@@ -2,6 +2,7 @@
 <info>
 <keywords>
 FTP-ipv6
+IPv6
 EPSV
 --disable-epsv
 </keywords>
diff --git a/tests/data/test255 b/tests/data/test255
index 4bef23fa7aa0d722d236382319bf7609267a278a..cc50c95e4bc24c94f7f653b333e3c34207f9ff1c 100644
--- a/tests/data/test255
+++ b/tests/data/test255
@@ -2,6 +2,7 @@
 <info>
 <keywords>
 FTP-ipv6
+IPv6
 EPRT
 --disable-eprt
 </keywords>