diff --git a/macro/PackageHeader.py b/macro/PackageHeader.py
index 3d47035..5630c91 100644
--- a/macro/PackageHeader.py
+++ b/macro/PackageHeader.py
@@ -7,7 +7,7 @@
 generates_headings = True
 dependencies = []
 
-hidden_distros = ['boxturtle', 'cturtle', 'diamondback', 'electric', 'fuerte', 'groovy', 'unstable']
+hidden_distros = ['boxturtle', 'cturtle', 'diamondback', 'electric', 'fuerte', 'groovy', 'hydro', 'unstable']
 
 for hidden_distro in hidden_distros if hidden_distro in distro_names:
     distro_names.remove(hidden_distro)
diff --git a/macro/StackHeader.py b/macro/StackHeader.py
index 8631e35..937a8f7 100644
--- a/macro/StackHeader.py
+++ b/macro/StackHeader.py
@@ -8,7 +8,7 @@
 generates_headings = True
 dependencies = []
 
-hidden_distros = ['boxturtle', 'cturtle', 'diamondback', 'electric', 'fuerte', 'groovy', 'unstable']
+hidden_distros = ['boxturtle', 'cturtle', 'diamondback', 'electric', 'fuerte', 'groovy', 'hydro', 'unstable']
 
 for hidden_distro in hidden_distros if hidden_distro in distro_names:
     distro_names.remove(hidden_distro)