diff --git a/src/mame/audio/galaga.c b/src/mame/audio/galaga.c
index b8b0f1e5d92..0ee8695772a 100644
--- a/src/mame/audio/galaga.c
+++ b/src/mame/audio/galaga.c
@@ -132,7 +132,7 @@ DISCRETE_SOUND_START(bosco)
 	DISCRETE_INPUT_DATA(NAMCO_54XX_0_DATA(NODE_01))
 	DISCRETE_INPUT_DATA(NAMCO_54XX_1_DATA(NODE_01))
 	DISCRETE_INPUT_DATA(NAMCO_54XX_2_DATA(NODE_01))
-	DISCRETE_INPUT_DATA(NAMCO_52XX_P_DATA(NODE_01))
+	DISCRETE_INPUT_DATA(NAMCO_54XX_P_DATA(NODE_01))
 
 	/************************************************
      * CHANL1 sound
@@ -183,7 +183,7 @@ DISCRETE_SOUND_START(bosco)
 	/* this circuit was simulated in SPICE and an equivalent filter circuit generated */
 	DISCRETE_DAC_R1(NODE_50,
 					0,			/* ENAB */
-					NAMCO_52XX_P_DATA(NODE_01),
+					NAMCO_54XX_P_DATA(NODE_01),
 					4,			/* 4V - unmeasured*/
 					&bosco_52xx_dac)
 	DISCRETE_FILTER2(NODE_51,
diff --git a/src/mame/audio/namco54.h b/src/mame/audio/namco54.h
index b8977800754..829d354e923 100644
--- a/src/mame/audio/namco54.h
+++ b/src/mame/audio/namco54.h
@@ -33,7 +33,7 @@ DEVICE_GET_INFO( namco_54xx );
 #define NAMCO_54XX_0_DATA(base)		(NODE_RELATIVE(base, 0))
 #define NAMCO_54XX_1_DATA(base)		(NODE_RELATIVE(base, 1))
 #define NAMCO_54XX_2_DATA(base)		(NODE_RELATIVE(base, 2))
-#define NAMCO_52XX_P_DATA(base)		(NODE_RELATIVE(base, 3))
+#define NAMCO_54XX_P_DATA(base)		(NODE_RELATIVE(base, 3))
 
 
 #endif	/* NAMCO54_H */
diff --git a/src/mame/audio/polepos.c b/src/mame/audio/polepos.c
index 5c7ea95fb44..267c1e141d7 100644
--- a/src/mame/audio/polepos.c
+++ b/src/mame/audio/polepos.c
@@ -253,7 +253,7 @@ DISCRETE_SOUND_START(polepos)
 	DISCRETE_INPUT_DATA(NAMCO_54XX_0_DATA(NODE_01))
 	DISCRETE_INPUT_DATA(NAMCO_54XX_1_DATA(NODE_01))
 	DISCRETE_INPUT_DATA(NAMCO_54XX_2_DATA(NODE_01))
-	DISCRETE_INPUT_DATA(NAMCO_52XX_P_DATA(NODE_01))
+	DISCRETE_INPUT_DATA(NAMCO_54XX_P_DATA(NODE_01))
 
 	/************************************************
      * CHANL1 sound
@@ -316,7 +316,7 @@ DISCRETE_SOUND_START(polepos)
 	/* this circuit was simulated in SPICE and an equivalent filter circuit generated */
 	DISCRETE_DAC_R1(NODE_50,
 					0,			/* ENAB */
-					NAMCO_52XX_P_DATA(NODE_01),
+					NAMCO_54XX_P_DATA(NODE_01),
 					4,			/* 4V - unmeasured*/
 					&polepos_52xx_dac)
 	/* fake it so 0 is now vRef */