diff --git a/lib/config.dj b/lib/config.dj
index 8bc2b7e1c..308e4368d 100644
--- a/lib/config.dj
+++ b/lib/config.dj
@@ -43,6 +43,7 @@
 #define HAVE_STRFTIME          1
 #define HAVE_STRICMP           1
 #define HAVE_STRSTR            1
+#define HAVE_STRTOLL           1
 #define HAVE_SYS_SOCKET_H      1
 #define HAVE_SYS_STAT_H        1
 #define HAVE_SYS_TYPES_H       1