diff --git a/core/src/mindustry/core/Logic.java b/core/src/mindustry/core/Logic.java
index 933468f983..22bc9259d0 100644
--- a/core/src/mindustry/core/Logic.java
+++ b/core/src/mindustry/core/Logic.java
@@ -383,7 +383,7 @@ public class Logic implements ApplicationListener{
     public static void researched(Content content){
         if(!(content instanceof UnlockableContent u)) return;
 
-        boolean was = !u.unlockedNow();
+        boolean was = u.unlockedNow();
         state.rules.researched.add(u.name);
 
         if(!was){