diff --git a/libsrc/c64/workingscreenaddr.s b/libsrc/c64/workingscreenaddr.s
index 7d06eec11..eafbb4852 100644
--- a/libsrc/c64/workingscreenaddr.s
+++ b/libsrc/c64/workingscreenaddr.s
@@ -7,7 +7,6 @@
 
         .include        "c64.inc"
 
-        .import         cbm_update_working_screen_pointers
         .export         _cbm_set_working_screen
 
 _cbm_set_working_screen:
@@ -16,7 +15,7 @@ _cbm_set_working_screen:
         and #3
         bne @error
         txa
-        
+
         ldy #reject_range_count - 1
     @check_ranges:
             cmp reject_range_start, y
@@ -28,7 +27,7 @@ _cbm_set_working_screen:
         bpl @check_ranges
     
         sta SCREEN_HI  ; Tell kernal to which memory screen output will go
-        jsr cbm_update_working_screen_pointers
+        jsr $e56c
 
         lda #0
         tax
diff --git a/libsrc/cbm/_workingscreenaddr.s b/libsrc/cbm/_workingscreenaddr.s
deleted file mode 100644
index 6df98b671..000000000
--- a/libsrc/cbm/_workingscreenaddr.s
+++ /dev/null
@@ -1,15 +0,0 @@
-;
-; Stefan 'MonteCarlos' Andree, 26.08.2024
-;
-; Helper function for _cbm_set_working_screen (contains no checks, if desired screen addr is valid)
-; Called by concrete implementations in the target subfolders
-
-        .include        "cbm.inc"
-
-        .export         cbm_update_working_screen_pointers
-
-cbm_update_working_screen_pointers:
-        sec
-        jsr PLOT       ; Get cursor position ...
-        clc
-        jmp PLOT       ; ... and set it again to update address of char below cursor with new hi-byte