diff --git a/libc/net/lib_inetntop.c b/libc/net/lib_inetntop.c
index 1f3d33c6f4c..e788f768de8 100644
--- a/libc/net/lib_inetntop.c
+++ b/libc/net/lib_inetntop.c
@@ -53,6 +53,21 @@
 
 #include <arpa/inet.h>
 
+/****************************************************************************
+ * Pre-processor Definitions
+ ****************************************************************************/
+
+/* If netdb support is enabled, then we need to be able to manage IPv4 and
+ * IPv6 addresses, regardless of networking support.
+ */
+
+#ifdef CONFIG_LIB_NETDB
+#  undef  CONFIG_NET_IPv4
+#  undef  CONFIG_NET_IPv6
+#  define CONFIG_NET_IPv4 1
+#  define CONFIG_NET_IPv6 1
+#endif
+
 /****************************************************************************
  * Private Functions
  ****************************************************************************/
diff --git a/libc/net/lib_inetpton.c b/libc/net/lib_inetpton.c
index 72229d2f2c3..fda5a9d4862 100644
--- a/libc/net/lib_inetpton.c
+++ b/libc/net/lib_inetpton.c
@@ -55,6 +55,21 @@
 #include <arpa/inet.h>
 #include <netinet/in.h>
 
+/****************************************************************************
+ * Pre-processor Definitions
+ ****************************************************************************/
+
+/* If netdb support is enabled, then we need to be able to manage IPv4 and
+ * IPv6 addresses, regardless of networking support.
+ */
+
+#ifdef CONFIG_LIB_NETDB
+#  undef  CONFIG_NET_IPv4
+#  undef  CONFIG_NET_IPv6
+#  define CONFIG_NET_IPv4 1
+#  define CONFIG_NET_IPv6 1
+#endif
+
 /****************************************************************************
  * Private Functions
  ****************************************************************************/