diff --git a/Concurrent Systems/test/Untitled.md b/Concurrent Systems/test/Untitled.md
index 4e8f12f..c72aa51 100644
--- a/Concurrent Systems/test/Untitled.md	
+++ b/Concurrent Systems/test/Untitled.md	
@@ -37,12 +37,12 @@ end_write() :=
 
 ```
 monitor RW_READERS :=
-	AR, WR, AW, WW init at 0
-	condition CR, CW, CR_PR
+	AR, WR, AW, WW, R_batch init at 0
+	condition CR, CW
 
 operation begin_read() :=
 	WR++
-	if AW != 0 then
+	if (WW || AW != 0 then
 		CR.wait()
 		CR.signal()
 	AR++