diff --git a/libguile/gen-scmconfig.c b/libguile/gen-scmconfig.c
index 2f6fa6e6a..e433bd164 100644
--- a/libguile/gen-scmconfig.c
+++ b/libguile/gen-scmconfig.c
@@ -376,10 +376,16 @@ main (int argc, char *argv[])
 
 #if defined GUILE_USE_64_CALLS && defined HAVE_STAT64
   pf ("typedef scm_t_int64 scm_t_off;\n");
+  pf ("#define SCM_T_OFF_MAX SCM_T_INT64_MAX\n");
+  pf ("#define SCM_T_OFF_MIN SCM_T_INT64_MIN\n");
 #elif SIZEOF_OFF_T == SIZEOF_INT
   pf ("typedef int scm_t_off;\n");
+  pf ("#define SCM_T_OFF_MAX INT_MAX\n");
+  pf ("#define SCM_T_OFF_MIN INT_MIN\n");
 #else
   pf ("typedef long int scm_t_off;\n");
+  pf ("#define SCM_T_OFF_MAX LONG_MAX\n");
+  pf ("#define SCM_T_OFF_MIN LONG_MIN\n");
 #endif
 
   pf ("/* Define to 1 if the compiler supports the "