diff --git a/hw/misc/vmport.c b/hw/misc/vmport.c
index 8363dfdf92..86390728f5 100644
--- a/hw/misc/vmport.c
+++ b/hw/misc/vmport.c
@@ -43,13 +43,13 @@ typedef struct VMPortState
     ISADevice parent_obj;
 
     MemoryRegion io;
-    IOPortReadFunc *func[VMPORT_ENTRIES];
+    VMPortReadFunc *func[VMPORT_ENTRIES];
     void *opaque[VMPORT_ENTRIES];
 } VMPortState;
 
 static VMPortState *port_state;
 
-void vmport_register(unsigned char command, IOPortReadFunc *func, void *opaque)
+void vmport_register(unsigned char command, VMPortReadFunc *func, void *opaque)
 {
     if (command >= VMPORT_ENTRIES)
         return;
diff --git a/include/hw/i386/pc.h b/include/hw/i386/pc.h
index a417402bbb..a350d8fa51 100644
--- a/include/hw/i386/pc.h
+++ b/include/hw/i386/pc.h
@@ -3,7 +3,6 @@
 
 #include "qemu-common.h"
 #include "exec/memory.h"
-#include "exec/ioport.h"
 #include "hw/isa/isa.h"
 #include "hw/block/fdc.h"
 #include "net/net.h"
@@ -56,11 +55,14 @@ typedef struct GSIState {
 void gsi_handler(void *opaque, int n, int level);
 
 /* vmport.c */
+typedef uint32_t (VMPortReadFunc)(void *opaque, uint32_t address);
+
 static inline void vmport_init(ISABus *bus)
 {
     isa_create_simple(bus, "vmport");
 }
-void vmport_register(unsigned char command, IOPortReadFunc *func, void *opaque);
+
+void vmport_register(unsigned char command, VMPortReadFunc *func, void *opaque);
 void vmmouse_get_data(uint32_t *data);
 void vmmouse_set_data(const uint32_t *data);