diff --git a/tests/data/test1086 b/tests/data/test1086
index 402e1f9207..354b2e09ac 100644
--- a/tests/data/test1086
+++ b/tests/data/test1086
@@ -6,6 +6,7 @@ EPSV
 RETR
 timeout
 FAILURE
+flaky
 </keywords>
 </info>
 
diff --git a/tests/data/test1113 b/tests/data/test1113
index d6118ad2d8..8d10975ea0 100644
--- a/tests/data/test1113
+++ b/tests/data/test1113
@@ -6,6 +6,7 @@ RETR
 LIST
 wildcardmatch
 ftplistparser
+flaky
 </keywords>
 </info>
 
diff --git a/tests/data/test1901 b/tests/data/test1901
index c087cc3840..17c04d14e3 100644
--- a/tests/data/test1901
+++ b/tests/data/test1901
@@ -4,6 +4,7 @@
 HTTP
 pipelining
 multi
+flaky
 </keywords>
 </info>
 
diff --git a/tests/data/test1902 b/tests/data/test1902
index a634c46afc..555b4863b2 100644
--- a/tests/data/test1902
+++ b/tests/data/test1902
@@ -4,6 +4,7 @@
 HTTP
 pipelining
 multi
+flaky
 </keywords>
 </info>
 
diff --git a/tests/data/test1903 b/tests/data/test1903
index 79cae02668..c72561838d 100644
--- a/tests/data/test1903
+++ b/tests/data/test1903
@@ -4,6 +4,7 @@
 HTTP
 pipelining
 multi
+flaky
 </keywords>
 </info>
 
diff --git a/tests/data/test573 b/tests/data/test573
index 054064ffbc..e3299b8202 100644
--- a/tests/data/test573
+++ b/tests/data/test573
@@ -3,6 +3,7 @@
 <keywords>
 HTTP
 multi
+flaky
 </keywords>
 </info>
 #