diff --git a/compiler/res/prog8lib/cx16/bmx.p8 b/compiler/res/prog8lib/cx16/bmx.p8
index de4c848e3..961d6a602 100644
--- a/compiler/res/prog8lib/cx16/bmx.p8
+++ b/compiler/res/prog8lib/cx16/bmx.p8
@@ -45,7 +45,7 @@ bmx {
             } else
                 error_message = "invalid bmx file"
         } else
-            error_message = diskio.status()
+            error_message = "can't open file"
 
         close()
         return false
@@ -146,11 +146,6 @@ bmx {
         old_drivenumber = diskio.drivenumber
         diskio.drivenumber = drivenumber
         if diskio.f_open_w(filename) {
-            cx16.r0 = diskio.status()
-            if cx16.r0[0]!='0' {
-                error_message = cx16.r0
-                goto save_end
-            }
             diskio.reset_write_channel()
             if write_header() {
                 if write_palette() {
@@ -161,7 +156,7 @@ bmx {
             } else
                 error_message = "header error"
         } else
-             error_message = diskio.status()
+             error_message = "can't open file"
 save_end:
         diskio.f_close_w()
         diskio.drivenumber = old_drivenumber
diff --git a/compiler/res/prog8lib/cx16/diskio.p8 b/compiler/res/prog8lib/cx16/diskio.p8
index b3ca8be37..403d0e325 100644
--- a/compiler/res/prog8lib/cx16/diskio.p8
+++ b/compiler/res/prog8lib/cx16/diskio.p8
@@ -717,9 +717,8 @@ io_error:
             goto io_error
         void cbm.CHKIN(15)        ; use #15 as input channel
 
-        list_filename[0] = cbm.CHRIN()
-        list_filename[1] = cbm.CHRIN()
-        list_filename[2] = 0
+        cx16.r0L = (cbm.CHRIN()-'0') * 10
+        cx16.r0L += (cbm.CHRIN()-'0')
 
         while cbm.READST()==0 {
             void cbm.CHRIN()
@@ -727,7 +726,7 @@ io_error:
 
         cbm.CLRCHN()        ; restore default i/o devices
         cbm.CLOSE(15)
-        return conv.str2ubyte(list_filename)
+        return cx16.r0L
 
 io_error:
         cbm.CLRCHN()