2 files changed, 2 insertions, 2 deletions
diff --git a/pk/frontend.c b/pk/frontend.c
index 52e26fa..e734703 100644
--- a/pk/frontend.c
+++ b/pk/frontend.c
@@ -22,7 +22,7 @@ uint64_t tohost_sync(unsigned dev, unsigned cmd, uint64_t payload)
   return m.data;
 }
 
-long frontend_syscall(long n, long a0, long a1, long a2, long a3, long a4, long a5, long a6)
+long frontend_syscall(long n, uint64_t a0, uint64_t a1, uint64_t a2, uint64_t a3, uint64_t a4, uint64_t a5, uint64_t a6)
 {
   static volatile uint64_t magic_mem[8];
 
diff --git a/pk/frontend.h b/pk/frontend.h
index 40f7c19..9a747f1 100644
--- a/pk/frontend.h
+++ b/pk/frontend.h
@@ -18,7 +18,7 @@
 #define FROMHOST_DATA(fromhost_value) ((uint64_t)(fromhost_value) << 16 >> 16)
 
 void die(int) __attribute__((noreturn));
-long frontend_syscall(long n, long a0, long a1, long a2, long a3, long a4, long a5, long a6);
+long frontend_syscall(long n, uint64_t a0, uint64_t a1, uint64_t a2, uint64_t a3, uint64_t a4, uint64_t a5, uint64_t a6);
 uint64_t tohost_sync(unsigned dev, unsigned cmd, uint64_t payload);
 
 #endif