diff --git a/src/bin/pg_dump/pg_dump.c b/src/bin/pg_dump/pg_dump.c
index 082dc841e9..e962ae7e91 100644
--- a/src/bin/pg_dump/pg_dump.c
+++ b/src/bin/pg_dump/pg_dump.c
@@ -33,6 +33,7 @@
 
 #include <unistd.h>
 #include <ctype.h>
+#include <limits.h>
 #ifdef HAVE_TERMIOS_H
 #include <termios.h>
 #endif