diff --git a/core/net/ipv6/uip-ds6.h b/core/net/ipv6/uip-ds6.h
index 5c9e4d3c7..b6238e609 100644
--- a/core/net/ipv6/uip-ds6.h
+++ b/core/net/ipv6/uip-ds6.h
@@ -132,12 +132,12 @@
 
 /** \brief General DS6 definitions */
 /** Period for uip-ds6 periodic task*/
-#ifndef UIP_CONF_DS6_PERIOD
+#ifndef UIP_DS6_CONF_PERIOD
 #define UIP_DS6_PERIOD   (CLOCK_SECOND/10)
 #else
-#define UIP_DS6_PERIOD UIP_CONF_DS6_PERIOD
-#endif
-
+#define UIP_DS6_PERIOD UIP_DS6_CONF_PERIOD
+#endif
+
 #define FOUND 0
 #define FREESPACE 1
 #define NOSPACE 2