diff --git a/hw/mc146818rtc.h b/hw/mc146818rtc.h
new file mode 100644
index 0000000000..7211dae37e
--- /dev/null
+++ b/hw/mc146818rtc.h
@@ -0,0 +1,10 @@
+#ifndef MC146818RTC_H
+#define MC146818RTC_H
+
+typedef struct RTCState RTCState;
+
+RTCState *rtc_init(int base_year);
+void rtc_set_memory(RTCState *s, int addr, int val);
+void rtc_set_date(RTCState *s, const struct tm *tm);
+
+#endif /* !MC146818RTC_H */
diff --git a/hw/pc.h b/hw/pc.h
index 8cfec6c0dc..e3cc0a58bd 100644
--- a/hw/pc.h
+++ b/hw/pc.h
@@ -5,6 +5,7 @@
 #include "ioport.h"
 #include "isa.h"
 #include "fdc.h"
+#include "mc146818rtc.h"
 
 /* PC-style peripherals (also used by other machines).  */
 
@@ -76,14 +77,6 @@ void i8042_mm_init(qemu_irq kbd_irq, qemu_irq mouse_irq,
                    target_phys_addr_t base, ram_addr_t size,
                    target_phys_addr_t mask);
 
-/* mc146818rtc.c */
-
-typedef struct RTCState RTCState;
-
-RTCState *rtc_init(int base_year);
-void rtc_set_memory(RTCState *s, int addr, int val);
-void rtc_set_date(RTCState *s, const struct tm *tm);
-
 /* pc.c */
 extern int fd_bootchk;