diff --git a/highlighters/main/test-data/prefix-redirection.zsh b/highlighters/main/test-data/prefix-redirection.zsh
index 5a5c0e2..53c699f 100644
--- a/highlighters/main/test-data/prefix-redirection.zsh
+++ b/highlighters/main/test-data/prefix-redirection.zsh
@@ -27,6 +27,8 @@
 # vim: ft=zsh sw=2 ts=2 et
 # -------------------------------------------------------------------------------------------------
 
+type sudo >/dev/null || skip_test='sudo must be present'
+
 BUFFER='>/tmp >/tmp sudo echo >/tmp foo'
 
 expected_region_highlight=(
diff --git a/highlighters/main/test-data/sudo-command.zsh b/highlighters/main/test-data/sudo-command.zsh
index 3183a23..e825e83 100644
--- a/highlighters/main/test-data/sudo-command.zsh
+++ b/highlighters/main/test-data/sudo-command.zsh
@@ -27,6 +27,8 @@
 # vim: ft=zsh sw=2 ts=2 et
 # -------------------------------------------------------------------------------------------------
 
+type sudo >/dev/null || skip_test='sudo must be present'
+
 # Tests three codepaths:
 # * -i  (no argument)
 # * -C3 (pasted argument)
diff --git a/highlighters/main/test-data/sudo-comment.zsh b/highlighters/main/test-data/sudo-comment.zsh
index 856567b..c750b01 100644
--- a/highlighters/main/test-data/sudo-comment.zsh
+++ b/highlighters/main/test-data/sudo-comment.zsh
@@ -27,6 +27,8 @@
 # vim: ft=zsh sw=2 ts=2 et
 # -------------------------------------------------------------------------------------------------
 
+type sudo >/dev/null || skip_test='sudo must be present'
+
 setopt interactive_comments
 BUFFER='sudo -u # comment'
 
diff --git a/highlighters/main/test-data/sudo-redirection.zsh b/highlighters/main/test-data/sudo-redirection.zsh
index f507899..419caf2 100644
--- a/highlighters/main/test-data/sudo-redirection.zsh
+++ b/highlighters/main/test-data/sudo-redirection.zsh
@@ -27,6 +27,8 @@
 # vim: ft=zsh sw=2 ts=2 et
 # -------------------------------------------------------------------------------------------------
 
+type sudo >/dev/null || skip_test='sudo must be present'
+
 BUFFER='sudo -u >/tmp otheruser ls; sudo ls; sudo -i ls'
 
 expected_region_highlight=(
diff --git a/highlighters/main/test-data/sudo-redirection2.zsh b/highlighters/main/test-data/sudo-redirection2.zsh
index 30f6ff8..715fed2 100644
--- a/highlighters/main/test-data/sudo-redirection2.zsh
+++ b/highlighters/main/test-data/sudo-redirection2.zsh
@@ -27,6 +27,8 @@
 # vim: ft=zsh sw=2 ts=2 et
 # -------------------------------------------------------------------------------------------------
 
+type sudo >/dev/null || skip_test='sudo must be present'
+
 BUFFER='sudo >/tmp -u otheruser ls'
 
 expected_region_highlight=(
diff --git a/highlighters/main/test-data/sudo-redirection3.zsh b/highlighters/main/test-data/sudo-redirection3.zsh
index fdd426d..f8ea581 100644
--- a/highlighters/main/test-data/sudo-redirection3.zsh
+++ b/highlighters/main/test-data/sudo-redirection3.zsh
@@ -27,6 +27,8 @@
 # vim: ft=zsh sw=2 ts=2 et
 # -------------------------------------------------------------------------------------------------
 
+type sudo >/dev/null || skip_test='sudo must be present'
+
 BUFFER='sudo 2>./. -u otheruser ls'
 
 expected_region_highlight=(