diff --git a/src/cpu.rs b/src/cpu.rs
index d0bf0d41968306311c523652dd491aabeb69300d..b6b0a32fa314d83aa03b78afa852973366b13f52 100644
--- a/src/cpu.rs
+++ b/src/cpu.rs
@@ -106,8 +106,7 @@ impl Cpu {
         // is going to be used in the fetching phase
         let pc = self.pc;
 
-        //@todo maybe remove this option as it may
-        // spend valuable resources
+        #[cfg(feature = "debug")]
         if pc >= 0x8000 && pc < 0x9fff {
             panic!("Invalid PC area at 0x{:04x}", pc);
         }