diff --git a/libsrc/c65/status.s b/libsrc/c65/status.s
index c6f279230..dc443a0f2 100644
--- a/libsrc/c65/status.s
+++ b/libsrc/c65/status.s
@@ -1,5 +1,15 @@
 ;
-; Oliver Schmidt, 2012-09-30
+; Stefan Haubenthal, 2023-01-16
 ;
 
-        .exportzp       ST := $90       ; IEC status byte
+        .export         initst
+
+        .include        "c65.inc"
+
+.proc   initst
+
+        lda     #$00
+        sta     STATUS
+        rts
+
+.endproc
diff --git a/libsrc/mega65/status.s b/libsrc/mega65/status.s
index c6f279230..cb6792289 100644
--- a/libsrc/mega65/status.s
+++ b/libsrc/mega65/status.s
@@ -1,5 +1,15 @@
 ;
-; Oliver Schmidt, 2012-09-30
+; Stefan Haubenthal, 2023-01-16
 ;
 
-        .exportzp       ST := $90       ; IEC status byte
+        .export         initst
+
+        .include        "mega65.inc"
+
+.proc   initst
+
+        lda     #$00
+        sta     STATUS
+        rts
+
+.endproc