diff --git a/alliance/src/vbl/src/main.c b/alliance/src/vbl/src/main.c
index 2e2e0e5b..9582093c 100644
--- a/alliance/src/vbl/src/main.c
+++ b/alliance/src/vbl/src/main.c
@@ -27,11 +27,11 @@
 # include <stdio.h>
 # include <malloc.h>
 
-# include MUT_H
-# include AUT_H
-# include VEX_H
-# include VBH_H
-# include VBL_H
+# include "mut.h"
+# include "aut.h"
+# include "vex.h"
+# include "vbh.h"
+# include "vbl.h"
 
 # ifdef VBL_DEBUG
   extern int vbl_y_debug;
diff --git a/alliance/src/vbl/src/vbl_bcomp_l.l b/alliance/src/vbl/src/vbl_bcomp_l.l
index 851dd3d4..a523426f 100644
--- a/alliance/src/vbl/src/vbl_bcomp_l.l
+++ b/alliance/src/vbl/src/vbl_bcomp_l.l
@@ -29,10 +29,10 @@
 #include <string.h>
 #include <stdlib.h>
 #include <ctype.h>
-#include MUT_H
-#include AUT_H
-#include VEX_H
-#include VBH_H
+#include "mut.h"
+#include "aut.h"
+#include "vex.h"
+#include "vbh.h"
 
 typedef struct vbl_expr
 {
diff --git a/alliance/src/vbl/src/vbl_bcomp_y.y b/alliance/src/vbl/src/vbl_bcomp_y.y
index 0730af18..28146b99 100644
--- a/alliance/src/vbl/src/vbl_bcomp_y.y
+++ b/alliance/src/vbl/src/vbl_bcomp_y.y
@@ -34,10 +34,10 @@
 #include <stdio.h>
 #include <stdlib.h>
 #include <string.h>
-#include MUT_H
-#include AUT_H
-#include VEX_H
-#include VBH_H
+#include "mut.h"
+#include "aut.h"
+#include "vex.h"
+#include "vbh.h"
 
 #include "vbl_utype.h"
 #include "vbl_bedef.h"
diff --git a/alliance/src/vbl/src/vbl_bspec.c b/alliance/src/vbl/src/vbl_bspec.c
index 31b865bd..2f95d67f 100644
--- a/alliance/src/vbl/src/vbl_bspec.c
+++ b/alliance/src/vbl/src/vbl_bspec.c
@@ -27,10 +27,10 @@
 #include <stdio.h>
 #include <stdlib.h>
 #include <string.h>
-#include MUT_H
-#include VEX_H
-#include AUT_H
-#include VBH_H
+#include "mut.h"
+#include "vex.h"
+#include "aut.h"
+#include "vbh.h"
 
 #include "vbl_bedef.h"
 #include "vbl_bspec.h"
diff --git a/alliance/src/vbl/src/vbl_parse.c b/alliance/src/vbl/src/vbl_parse.c
index 41f8b6f2..06ff82d3 100644
--- a/alliance/src/vbl/src/vbl_parse.c
+++ b/alliance/src/vbl/src/vbl_parse.c
@@ -41,11 +41,11 @@
 |                                                             |
 \------------------------------------------------------------*/
 
-# include MUT_H
-# include AUT_H
-# include VEX_H
-# include VBH_H
-# include VBL_H
+# include "mut.h"
+# include "aut.h"
+# include "vex.h"
+# include "vbh.h"
+# include "vbl.h"
 
 # include <stdio.h>
 # include <stdlib.h>
diff --git a/alliance/src/vbl/src/vbl_util.c b/alliance/src/vbl/src/vbl_util.c
index c67ac541..7315136d 100644
--- a/alliance/src/vbl/src/vbl_util.c
+++ b/alliance/src/vbl/src/vbl_util.c
@@ -42,10 +42,10 @@
 #include <stdlib.h>
 #include <unistd.h>
 
-#include MUT_H
-#include AUT_H
-#include VEX_H
-#include VBH_H
+#include "mut.h"
+#include "aut.h"
+#include "vex.h"
+#include "vbh.h"
 
 #include "vbl_utype.h"
 #include "vbl_util.h"