diff --git a/CKAN/Tests/CKAN/Meta.cs b/CKAN/Tests/CKAN/Meta.cs
index c79191a1ce..3abeb5ea5a 100644
--- a/CKAN/Tests/CKAN/Meta.cs
+++ b/CKAN/Tests/CKAN/Meta.cs
@@ -32,11 +32,11 @@ public void ReleaseNumber()
             }
 
             // We should always be in the form v0.xx (pre-release series),
-            // or vx.x.x (released). We also permit a (-RC\d) extension for
-            // release candidates.
+            // or vx.x.x (released). We also permit a (-RC\d+) extension for
+            // release candidates, and -PRE\d for pre-releases.
 
             Assert.IsTrue(
-                Regex.IsMatch(version.ToString(), @"^v(?:0.\d+|\d+\.\d+\.\d+(?:-RC\d+)?)$"),
+                Regex.IsMatch(version.ToString(), @"^v(?:0.\d+|\d+\.\d+\.\d+(?:-(?:RC|PRE)\d+)?)$"),
                 version.ToString());
         }
     }