diff --git a/src/processor.rs b/src/processor.rs
index 1404443..25cdb31 100644
--- a/src/processor.rs
+++ b/src/processor.rs
@@ -1213,7 +1213,7 @@ impl CPU {
     fn next_opcode(&mut self) -> u8 {
         unsafe {
             let opcode = self.memory.get(self.state.pc.as_u16);
-            self.state.pc.as_u16 += 0x1;
+            self.state.pc.as_u16 = self.state.pc.as_u16.wrapping_add(0x1);
             return opcode;
         };
     }