diff --git a/src/devices/bus/electron/exp.h b/src/devices/bus/electron/exp.h
index 57b98aa6d5c..9ebf65410fd 100644
--- a/src/devices/bus/electron/exp.h
+++ b/src/devices/bus/electron/exp.h
@@ -172,7 +172,7 @@ protected:
 
 // device type definition
 extern const device_type ELECTRON_EXPANSION_SLOT;
-DECLARE_DEVICE_TYPE(ELECTRON_EXPANSION_SLOT, electron_expansion_device)
+DECLARE_DEVICE_TYPE(ELECTRON_EXPANSION_SLOT, electron_expansion_slot_device)
 
 SLOT_INTERFACE_EXTERN( electron_expansion_devices );
 
diff --git a/src/devices/cpu/mips/mips3.h b/src/devices/cpu/mips/mips3.h
index cf1057a0513..c8b5657f481 100644
--- a/src/devices/cpu/mips/mips3.h
+++ b/src/devices/cpu/mips/mips3.h
@@ -22,11 +22,11 @@
 
 
 // NEC VR4300 series is MIPS III with 32-bit address bus and slightly custom COP0/TLB
-DECLARE_DEVICE_TYPE(VR4300BE,  r4300be_device)
-DECLARE_DEVICE_TYPE(VR4300LE,  r4300le_device)
+DECLARE_DEVICE_TYPE(VR4300BE,  vr4300be_device)
+DECLARE_DEVICE_TYPE(VR4300LE,  vr4300le_device)
 // VR4310 = VR4300 with different speed bin
-DECLARE_DEVICE_TYPE(VR4310BE,  r4310be_device)
-DECLARE_DEVICE_TYPE(VR4310LE,  r4310le_device)
+DECLARE_DEVICE_TYPE(VR4310BE,  vr4310be_device)
+DECLARE_DEVICE_TYPE(VR4310LE,  vr4310le_device)
 DECLARE_DEVICE_TYPE(R4600BE,   r4600be_device)
 DECLARE_DEVICE_TYPE(R4600LE,   r4600le_device)
 DECLARE_DEVICE_TYPE(R4650BE,   r4650be_device)