diff --git a/src/emu/diexec.c b/src/emu/diexec.c
index bdf8b3674d0..319fae6f154 100644
--- a/src/emu/diexec.c
+++ b/src/emu/diexec.c
@@ -245,7 +245,7 @@ void device_execute_interface::adjust_icount(int delta)
 	if (!executing())
 		return;
 
-	// aply the delta directly
+	// apply the delta directly
 	*m_icountptr += delta;
 }