--- src/minikafs.c
+++ src/minikafs.c
@@ -178,7 +178,13 @@
 static int
 minikafs_syscall(long function, long arg1, long arg2, long arg3, long arg4)
 {
+#ifdef __arm__
+	/* no afs_syscall */
+	errno = ENOSYS;
+	return -1;
+#else
 	return syscall(__NR_afs_syscall, function, arg1, arg2, arg3, arg4);
+#endif
 }
 
 /* Call into AFS, somehow. */