diff --git a/src/devices/cpu/m6502/m740.h b/src/devices/cpu/m6502/m740.h
index 880e09fef7d..352f0a4be5c 100644
--- a/src/devices/cpu/m6502/m740.h
+++ b/src/devices/cpu/m6502/m740.h
@@ -54,7 +54,6 @@ protected:
 
 #define O(o) void o ## _full(); void o ## _partial()
 
-	u32 inst_state_base;        /* Current instruction bank */
 	virtual u32 get_state_base() const override;
 
 	uint8_t do_clb(uint8_t in, uint8_t bit);