diff --git a/src/autocomplete.c b/src/autocomplete.c
index 62c0abd..1416433 100644
--- a/src/autocomplete.c
+++ b/src/autocomplete.c
@@ -22,11 +22,11 @@
 
 #include <stdlib.h>
 #include <string.h>
+#include <limits.h>
 
 #ifdef __APPLE__
     #include <sys/types.h>
     #include <sys/dir.h>
-    #include <sys/syslimits.h>
 #else
     #include <dirent.h>
 #endif /* ifdef __APPLE__ */
diff --git a/src/dns.c b/src/dns.c
index eec0b91..154300c 100644
--- a/src/dns.c
+++ b/src/dns.c
@@ -22,6 +22,7 @@
 
 #include <stdlib.h>
 #include <string.h>
+#include <sys/types.h> /* for u_char */
 #include <netinet/in.h>
 #include <resolv.h>