diff --git a/src/ChangeLog b/src/ChangeLog
index 3a84779f..43684209 100644
--- a/src/ChangeLog
+++ b/src/ChangeLog
@@ -2,6 +2,8 @@
 
 	* hash.c: Don't define countof if it's already defined.
 
+	* hash.c: Obtain the definition of uintptr_t when standalone.
+
 2006-01-30  Mauro Tortonesi  <mauro@ferrara.linux.it>
 
 	* http.c: Changed output format. Removed excessively verbose debugging
diff --git a/src/hash.c b/src/hash.c
index 64451712..46bd2357 100644
--- a/src/hash.c
+++ b/src/hash.c
@@ -54,6 +54,11 @@ so, delete this exception statement from your version.  */
 #  define countof(x) (sizeof (x) / sizeof ((x)[0]))
 # endif
 # define TOLOWER(x) ('A' <= (x) && (x) <= 'Z' ? (x) - 32 : (x))
+# if __STDC_VERSION__ >= 199901L
+#  include <stdint.h>  /* for uintptr_t */
+# else
+   typedef unsigned long uintptr_t;
+# endif
 #endif
 
 #include "hash.h"