diff --git a/src/devices/machine/cdp1879.h b/src/devices/machine/cdp1879.h
index 23f38b26ad7..ed45bd9972b 100644
--- a/src/devices/machine/cdp1879.h
+++ b/src/devices/machine/cdp1879.h
@@ -73,7 +73,6 @@ private:
 	};
 
 	u8 m_regs[10];
-	int m_seconds;
 	bool m_comparator_state;
 
 	// timers