diff --git a/arch/or1k/bits/limits.h b/arch/or1k/bits/limits.h
index fbc6d238..483b6749 100644
--- a/arch/or1k/bits/limits.h
+++ b/arch/or1k/bits/limits.h
@@ -1,5 +1,6 @@
 #if defined(_POSIX_SOURCE) || defined(_POSIX_C_SOURCE) \
  || defined(_XOPEN_SOURCE) || defined(_GNU_SOURCE) || defined(_BSD_SOURCE)
+#define PAGE_SIZE 8192
 #define LONG_BIT 32
 #endif