diff --git a/src/backend/libpq/be-secure-gssapi.c b/src/backend/libpq/be-secure-gssapi.c
index 1673b10315..ba8c0cd0f0 100644
--- a/src/backend/libpq/be-secure-gssapi.c
+++ b/src/backend/libpq/be-secure-gssapi.c
@@ -400,7 +400,7 @@ read_or_wait(Port *port, ssize_t len)
 		{
 			/*
 			 * If we got back less than zero, indicating an error, and that
-			 * wasn't just a EWOULDBOCK/EAGAIN, then give up.
+			 * wasn't just a EWOULDBLOCK/EAGAIN, then give up.
 			 */
 			if (ret < 0 && !(errno == EWOULDBLOCK || errno == EAGAIN))
 				return -1;