diff --git a/ChangeLog b/ChangeLog
index c0b80b7827..2e269bb871 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,5 +1,7 @@
 2001-01-28  Ulrich Drepper  <drepper@redhat.com>
 
+	* conform/data/netinet/in.h-data: Allow all of <inttypes.h>.
+
 	* conform/data/spawn.h-data: Allow all of <sched.h>.
 
 	* sysdeps/ia64/fpu/fraiseexcpt.c: Include <float.h>.  Removed
diff --git a/conform/data/netinet/in.h-data b/conform/data/netinet/in.h-data
index edbfaa7a4c..9b7d05e821 100644
--- a/conform/data/netinet/in.h-data
+++ b/conform/data/netinet/in.h-data
@@ -58,6 +58,7 @@ function uint16_t htons (uint16_t)
 function uint32_t ntohl (uint32_t)
 function uint16_t ntohs (uint16_t)
 
+allow-header intttypes.h
 allow-header arpa/inet.h
 
 constant INET6_ADDRSTRLEN 46