diff --git a/src/devices/bus/coco/coco_gmc.cpp b/src/devices/bus/coco/coco_gmc.cpp
index 5140e8cc1cf..51504eb7c69 100644
--- a/src/devices/bus/coco/coco_gmc.cpp
+++ b/src/devices/bus/coco/coco_gmc.cpp
@@ -39,7 +39,7 @@ DEFINE_DEVICE_TYPE(COCO_PAK_GMC, coco_pak_gmc_device, "cocopakgmc", "CoCo Games
 //-------------------------------------------------
 
 coco_pak_gmc_device::coco_pak_gmc_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock)
-		: coco_pak_banked_device(mconfig, tag, owner, clock),
+		: coco_pak_banked_device(mconfig, COCO_PAK_GMC, tag, owner, clock),
 		m_psg(*this, SN76489AN_TAG)
 {
 }
diff --git a/src/devices/bus/coco/coco_pak.cpp b/src/devices/bus/coco/coco_pak.cpp
index 97bcaddc6fa..dd2fe6c0fdc 100644
--- a/src/devices/bus/coco/coco_pak.cpp
+++ b/src/devices/bus/coco/coco_pak.cpp
@@ -151,6 +151,11 @@ coco_pak_banked_device::coco_pak_banked_device(const machine_config &mconfig, co
 {
 }
 
+coco_pak_banked_device::coco_pak_banked_device(const machine_config &mconfig, device_type type, const char *tag, device_t *owner, uint32_t clock)
+	: coco_pak_device(mconfig, type, tag, owner, clock)
+{
+}
+
 /*-------------------------------------------------
     device_reset - device-specific startup
 -------------------------------------------------*/
diff --git a/src/devices/bus/coco/coco_pak.h b/src/devices/bus/coco/coco_pak.h
index 6c7862da2ac..bd349167318 100644
--- a/src/devices/bus/coco/coco_pak.h
+++ b/src/devices/bus/coco/coco_pak.h
@@ -55,6 +55,8 @@ public:
 	coco_pak_banked_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock);
 
 protected:
+	coco_pak_banked_device(const machine_config &mconfig, device_type type, const char *tag, device_t *owner, uint32_t clock);
+
 	// device-level overrides
 	virtual void device_reset() override;
 	virtual DECLARE_WRITE8_MEMBER(write) override;