diff --git a/libsrc/c128/mou/c128-1351.s b/libsrc/c128/mou/c128-1351.s
index f2a71647c..ca165f5c3 100644
--- a/libsrc/c128/mou/c128-1351.s
+++ b/libsrc/c128/mou/c128-1351.s
@@ -81,10 +81,11 @@ YMax:           .res    2               ; Y2 value of bounding box
 OldValue:       .res    1               ; Temp for MoveCheck routine
 NewValue:       .res    1               ; Temp for MoveCheck routine
 
-; Default values for above variables
-
 .rodata
 
+; Default values for above variables
+; (We use ".proc" because we want to define both a label and a scope.)
+
 .proc   DefVars
         .byte   0, 0                    ; OldPotX/OldPotY
         .word   SCREEN_HEIGHT/2         ; YPos
diff --git a/libsrc/c128/mou/c128-joy.s b/libsrc/c128/mou/c128-joy.s
index 8c3bd779d..8845dd357 100644
--- a/libsrc/c128/mou/c128-joy.s
+++ b/libsrc/c128/mou/c128-joy.s
@@ -87,10 +87,11 @@ Buttons:        .res    1               ; Button mask
 
 Temp:           .res    1
 
-; Default values for above variables
-
 .rodata
 
+; Default values for above variables
+; (We use ".proc" because we want to define both a label and a scope.)
+
 .proc   DefVars
         .word   SCREEN_HEIGHT/2         ; YPos
         .word   SCREEN_WIDTH/2          ; XPos
diff --git a/libsrc/c128/mou/c128-pot.s b/libsrc/c128/mou/c128-pot.s
index ab6922896..595e33ac9 100644
--- a/libsrc/c128/mou/c128-pot.s
+++ b/libsrc/c128/mou/c128-pot.s
@@ -84,10 +84,11 @@ Buttons:        .res    1               ; Button mask
 
 Temp:           .res    1
 
-; Default values for above variables
-
 .rodata
 
+; Default values for above variables
+; (We use ".proc" because we want to define both a label and a scope.)
+
 .proc   DefVars
         .word   SCREEN_HEIGHT/2         ; YPos
         .word   SCREEN_WIDTH/2          ; XPos
diff --git a/libsrc/c64/mou/c64-1351.s b/libsrc/c64/mou/c64-1351.s
index ec053b0b2..0211ee20f 100644
--- a/libsrc/c64/mou/c64-1351.s
+++ b/libsrc/c64/mou/c64-1351.s
@@ -101,10 +101,9 @@ Buttons:        .res    1               ; button status bits
 OldValue:       .res    1               ; Temp for MoveCheck routine
 NewValue:       .res    1               ; Temp for MoveCheck routine
 
-; Default values for above variables
-
 .rodata
 
+; Default values for above variables
 ; (We use ".proc" because we want to define both a label and a scope.)
 
 .proc   DefVars
diff --git a/libsrc/c64/mou/c64-joy.s b/libsrc/c64/mou/c64-joy.s
index 05f0ce50e..08dad7b3c 100644
--- a/libsrc/c64/mou/c64-joy.s
+++ b/libsrc/c64/mou/c64-joy.s
@@ -106,10 +106,11 @@ Buttons:        .res    1               ; Button mask
 
 Temp:           .res    1
 
-; Default values for above variables
-
 .rodata
 
+; Default values for above variables
+; (We use ".proc" because we want to define both a label and a scope.)
+
 .proc   DefVars
         .word   SCREEN_HEIGHT/2         ; YPos
         .word   SCREEN_WIDTH/2          ; XPos
diff --git a/libsrc/c64/mou/c64-pot.s b/libsrc/c64/mou/c64-pot.s
index 3eb977477..3be0f4f3d 100644
--- a/libsrc/c64/mou/c64-pot.s
+++ b/libsrc/c64/mou/c64-pot.s
@@ -84,10 +84,11 @@ Buttons:        .res    1               ; Button mask
 
 Temp:           .res    1
 
-; Default values for above variables
-
 .rodata
 
+; Default values for above variables
+; (We use ".proc" because we want to define both a label and a scope.)
+
 .proc   DefVars
         .word   SCREEN_HEIGHT/2         ; YPos
         .word   SCREEN_WIDTH/2          ; XPos
diff --git a/libsrc/cbm510/mou/cbm510-joy.s b/libsrc/cbm510/mou/cbm510-joy.s
index 9381cf761..43bd722f3 100644
--- a/libsrc/cbm510/mou/cbm510-joy.s
+++ b/libsrc/cbm510/mou/cbm510-joy.s
@@ -89,10 +89,11 @@ YMax:           .res    2               ; Y2 value of bounding box
 
 Temp:           .res    1
 
-; Default values for above variables
-
 .rodata
 
+; Default values for above variables
+; (We use ".proc" because we want to define both a label and a scope.)
+
 .proc   DefVars
         .word   SCREEN_HEIGHT / 2       ; YPos
         .word   SCREEN_WIDTH / 2        ; XPos