diff --git a/src/rsrv/camsgtask.c b/src/rsrv/camsgtask.c
index 03afc8b6f..9448a09d3 100644
--- a/src/rsrv/camsgtask.c
+++ b/src/rsrv/camsgtask.c
@@ -51,7 +51,7 @@ static char *sccsId = "@(#)camsgtask.c	1.13\t11/20/92";
 #include <socket.h>
 #include <ioLib.h>
 #include <in.h>
-#include <tcp.h>
+#include <netinet/tcp.h>
 #include <errno.h>
 #include <task_params.h>
 #include <db_access.h>
diff --git a/src/rsrv/caserverio.c b/src/rsrv/caserverio.c
index 4e5f36f72..974c39a66 100644
--- a/src/rsrv/caserverio.c
+++ b/src/rsrv/caserverio.c
@@ -43,7 +43,7 @@ static char *sccsId = "@(#)caserverio.c	1.10\t7/28/92";
 #include <socket.h>
 #include <ioLib.h>
 #include <in.h>
-#include <tcp.h>
+#include <netinet/tcp.h>
 #include <errno.h>
 #include <server.h>