diff --git a/include/minix/com.h b/include/minix/com.h
index 7a1bbc5b1..9cf61dfc9 100644
--- a/include/minix/com.h
+++ b/include/minix/com.h
@@ -871,8 +871,7 @@
 #	define VFS_VMCALL_FD		m10_i2
 #	define VFS_VMCALL_REQID		m10_i3
 #	define VFS_VMCALL_ENDPOINT	m10_i4
-#	define VFS_VMCALL_OFFSET_LO	m10_l1
-#	define VFS_VMCALL_OFFSET_HI	m10_l2
+#	define VFS_VMCALL_OFFSET	m10_ull1
 #	define VFS_VMCALL_LENGTH	m10_l3
 
 /* Request codes to from VM to VFS */
diff --git a/servers/vfs/misc.c b/servers/vfs/misc.c
index 7ff9dd4f0..7dcbb3276 100644
--- a/servers/vfs/misc.c
+++ b/servers/vfs/misc.c
@@ -349,8 +349,7 @@ int do_vm_call(void)
 	int req_fd = job_m_in.VFS_VMCALL_FD;
 	u32_t req_id = job_m_in.VFS_VMCALL_REQID;
 	endpoint_t ep = job_m_in.VFS_VMCALL_ENDPOINT;
-	u64_t offset = make64(job_m_in.VFS_VMCALL_OFFSET_LO,
-		job_m_in.VFS_VMCALL_OFFSET_HI);
+	u64_t offset = job_m_in.VFS_VMCALL_OFFSET;
 	u32_t length = job_m_in.VFS_VMCALL_LENGTH;
 	int result = OK;
 	int slot;
diff --git a/servers/vm/vfs.c b/servers/vm/vfs.c
index ffb5bec96..c7ab5e7cf 100644
--- a/servers/vm/vfs.c
+++ b/servers/vm/vfs.c
@@ -86,8 +86,7 @@ int vfs_request(int reqno, int fd, struct vmproc *vmp, u64_t offset, u32_t len,
 	m->VFS_VMCALL_FD = fd;
 	m->VFS_VMCALL_REQID = reqid;
 	m->VFS_VMCALL_ENDPOINT = vmp->vm_endpoint;
-	m->VFS_VMCALL_OFFSET_LO = ex64lo(offset);
-	m->VFS_VMCALL_OFFSET_HI = ex64hi(offset);
+	m->VFS_VMCALL_OFFSET = offset;
 	m->VFS_VMCALL_LENGTH = len;
 
 	reqnode->who = vmp->vm_endpoint;