diff --git a/acconfig.h b/acconfig.h
index 43c2eace17..78d2e9b827 100644
--- a/acconfig.h
+++ b/acconfig.h
@@ -17,9 +17,6 @@
  ***/
 @TOP@
 
-/** define if getifaddrs() exists */
-#undef HAVE_GETIFADDRS
-
 /** define if you have the NET_RT_IFLIST sysctl variable and sys/sysctl.h */
 #undef HAVE_IFLIST_SYSCTL
 
diff --git a/config.h.in b/config.h.in
index f50291852a..a768eeccb6 100644
--- a/config.h.in
+++ b/config.h.in
@@ -17,9 +17,6 @@
  *** it does not get installed.
  ***/
 
-/** define if getifaddrs() exists */
-#undef HAVE_GETIFADDRS
-
 /** define if you have the NET_RT_IFLIST sysctl variable and sys/sysctl.h */
 #undef HAVE_IFLIST_SYSCTL