diff --git a/src/main/java/com/projectswg/launcher/core/services/data/AnnouncementService.java b/src/main/java/com/projectswg/launcher/core/services/data/AnnouncementService.java
index a0ae5c9..6f49cf9 100644
--- a/src/main/java/com/projectswg/launcher/core/services/data/AnnouncementService.java
+++ b/src/main/java/com/projectswg/launcher/core/services/data/AnnouncementService.java
@@ -169,11 +169,14 @@ public class AnnouncementService extends Service {
 			os = os.toLowerCase(Locale.US);
 			switch (os) {
 				case "windows":
-					return currentOs.contains("win");
+					if (!currentOs.contains("win"))
+						return false;
 				case "mac":
-					return currentOs.contains("mac");
+					if (!currentOs.contains("mac"))
+						return false;
 				case "linux":
-					return !currentOs.contains("win") && !currentOs.contains("mac");
+					if (currentOs.contains("win") || currentOs.contains("mac"))
+						return false;
 			}
 		}
 		// Inclusive