diff --git a/SheepMonitor.toc b/SheepMonitor.toc
index 4717689..2a0e13f 100755
--- a/SheepMonitor.toc
+++ b/SheepMonitor.toc
@@ -2,7 +2,7 @@
 ## Title: Sheep Monitor
 ## Notes: Provides various methods of notification to help you keep track of your flock.
 ## Author: funkjedi
-## Version: 1.27
+## Version: 1.28
 ## SavedVariables: SheepMonitorDatabase
 ## OptionalDeps: Ace3, LibAuras, LibAuraInfo-1.0
 ## X-Curse-Project-ID: 28218
diff --git a/changelog.txt b/changelog.txt
index 7f917a0..e37c7f0 100644
--- a/changelog.txt
+++ b/changelog.txt
@@ -1,3 +1,6 @@
+1.28
+- fix check for classic
+
 1.27
 - updated for patch 11.0
 
diff --git a/main.lua b/main.lua
index b719f96..b7ba43e 100755
--- a/main.lua
+++ b/main.lua
@@ -61,7 +61,7 @@ function SheepMonitor:OnInitialize()
 end
 
 function SheepMonitor:IsClassic()
-    return select(1, GetBuildInfo()) < '8.0.0'
+    return WOW_PROJECT_ID ~= WOW_PROJECT_MAINLINE
 end
 
 function SheepMonitor:OnEnable()