diff --git a/coap_config.h.riot b/coap_config.h.riot
index b3f08bbc..c44f3e2d 100644
--- a/coap_config.h.riot
+++ b/coap_config.h.riot
@@ -158,11 +158,17 @@
 #endif /* COAP_THREAD_RECURSIVE_CHECK */
 #endif /* CONFIG_LIBCOAP_THREAD_RECURSIVE_CHECK */
 
+#ifdef CONFIG_LIBCOAP_MAX_STRINGS
+#ifndef COAP_MAX_STRINGS
+#define COAP_MAX_STRINGS CONFIG_LIBCOAP_MAX_STRINGS
+#endif /* COAP_MAX_STRINGS */
+#endif /* CONFIG_LIBCOAP_MAX_STRINGS */
+
 #ifdef CONFIG_LIBCOAP_MAX_STRING_SIZE
 #ifndef COAP_MAX_STRING_SIZE
 #define COAP_MAX_STRING_SIZE CONFIG_LIBCOAP_MAX_STRING_SIZE
 #endif /* COAP_MAX_STRING_SIZE */
-#endif /* CONFIG_LIBCOAP_OSCORE_SUPPORT */
+#endif /* CONFIG_LIBCOAP_MAX_STRING_SIZE */
 
 #ifdef CONFIG_LIBCOAP_MAX_ENDPOINTS
 #ifndef COAP_MAX_ENDPOINTS