diff --git a/src/main/scala/millfork/assembly/mos/opt/VariableLifetime.scala b/src/main/scala/millfork/assembly/mos/opt/VariableLifetime.scala
index 9de3d4d3..c58b8aa4 100644
--- a/src/main/scala/millfork/assembly/mos/opt/VariableLifetime.scala
+++ b/src/main/scala/millfork/assembly/mos/opt/VariableLifetime.scala
@@ -74,9 +74,7 @@ object VariableLifetime {
         if (mask(i)) return
         while (true) {
           val line = code(i)
-          println(line)
           if (state(flow(i)) != Important && !readsReg(line)) return
-          println("masking...")
           mask(i) = true
           val op = code(i).opcode
           line match {