diff --git a/Arcade_MiST/Williams 6809 rev.2 Hardware/meta/Inferno.mra b/Arcade_MiST/Williams 6809 rev.2 Hardware/meta/Inferno.mra
index 36aaddbe..3aabd33a 100644
--- a/Arcade_MiST/Williams 6809 rev.2 Hardware/meta/Inferno.mra	
+++ b/Arcade_MiST/Williams 6809 rev.2 Hardware/meta/Inferno.mra	
@@ -5,7 +5,7 @@
     <year>1980</year>
     <manufacturer>Williams</manufacturer>
     <setname>inferno</setname>
-    <rbf>william2</rbf>
+    <rbf>williams2</rbf>
 
     <rom index="1"><part>2</part></rom>
 
diff --git a/Arcade_MiST/Williams 6809 rev.2 Hardware/meta/Joust 2 - Survival of the Fittest (revision 2).mra b/Arcade_MiST/Williams 6809 rev.2 Hardware/meta/Joust 2 - Survival of the Fittest (revision 2).mra
index 0544f3cd..e8dc3458 100644
--- a/Arcade_MiST/Williams 6809 rev.2 Hardware/meta/Joust 2 - Survival of the Fittest (revision 2).mra	
+++ b/Arcade_MiST/Williams 6809 rev.2 Hardware/meta/Joust 2 - Survival of the Fittest (revision 2).mra	
@@ -5,7 +5,7 @@
     <year>1980</year>
     <manufacturer>Williams</manufacturer>
     <setname>joust2</setname>
-    <rbf>william2</rbf>
+    <rbf>williams2</rbf>
 
     <rom index="1"><part>1</part></rom>
 
diff --git a/Arcade_MiST/Williams 6809 rev.2 Hardware/meta/Mystic Marathon.mra b/Arcade_MiST/Williams 6809 rev.2 Hardware/meta/Mystic Marathon.mra
index c2006444..167d9c00 100644
--- a/Arcade_MiST/Williams 6809 rev.2 Hardware/meta/Mystic Marathon.mra	
+++ b/Arcade_MiST/Williams 6809 rev.2 Hardware/meta/Mystic Marathon.mra	
@@ -5,7 +5,7 @@
     <year>1980</year>
     <manufacturer>Williams</manufacturer>
     <setname>mysticm</setname>
-    <rbf>william2</rbf>
+    <rbf>williams2</rbf>
 
     <rom index="1"><part>3</part></rom>
 
diff --git a/Arcade_MiST/Williams 6809 rev.2 Hardware/meta/Turkey Shoot.mra b/Arcade_MiST/Williams 6809 rev.2 Hardware/meta/Turkey Shoot.mra
index a32e12ff..f439492d 100644
--- a/Arcade_MiST/Williams 6809 rev.2 Hardware/meta/Turkey Shoot.mra	
+++ b/Arcade_MiST/Williams 6809 rev.2 Hardware/meta/Turkey Shoot.mra	
@@ -5,7 +5,7 @@
     <year>1980</year>
     <manufacturer>Williams</manufacturer>
     <setname>tshoot</setname>
-    <rbf>william2</rbf>
+    <rbf>williams2</rbf>
 
     <rom index="1"><part>0</part></rom>