diff --git a/include/minix/dmap.h b/include/minix/dmap.h
index 5e84aff76..1ac9dcd10 100644
--- a/include/minix/dmap.h
+++ b/include/minix/dmap.h
@@ -15,6 +15,7 @@
  */
 #define DMAP_MUTABLE		0x01	/* mapping can be overtaken */
 #define DMAP_BUSY		0x02	/* driver busy with request */
+#define DMAP_BABY		0x04	/* driver exec() not done yet */
 
 enum dev_style { STYLE_DEV, STYLE_NDEV, STYLE_TTY, STYLE_CLONE };
 
diff --git a/servers/is/dmp_fs.c b/servers/is/dmp_fs.c
index b3eb3d964..01946537d 100644
--- a/servers/is/dmp_fs.c
+++ b/servers/is/dmp_fs.c
@@ -54,9 +54,10 @@ PUBLIC void fproc_dmp()
 PRIVATE char * dmap_flags(int flags)
 {
 	static char fl[10];
-	fl[0] = '-';
+	strcpy(fl, "---");
 	if(flags & DMAP_MUTABLE) fl[0] = 'M';
-	fl[1] = '\0';
+	if(flags & DMAP_BUSY)    fl[1] = 'S';
+	if(flags & DMAP_BABY)    fl[2] = 'B';
 	return fl;
 }