diff --git a/libsrc/c128/crt0.s b/libsrc/c128/crt0.s
index d940e121c..0c9edfa77 100644
--- a/libsrc/c128/crt0.s
+++ b/libsrc/c128/crt0.s
@@ -43,10 +43,6 @@ Head:   .word   @Next
 
 Start:
 
-; Close open files
-
-        jsr	CLRCH
-
 ; Switch to the second charset
 
       	lda	#14
diff --git a/libsrc/c16/crt0.s b/libsrc/c16/crt0.s
index 18d6f7b09..d56e7bfde 100644
--- a/libsrc/c16/crt0.s
+++ b/libsrc/c16/crt0.s
@@ -39,10 +39,6 @@ Head:   .word   @Next
 
 Start:
 
-; Close open files
-
-	jsr	CLRCH
-
 ; Save the zero page locations we need
 
         ldx   	#zpspace-1
diff --git a/libsrc/c64/crt0.s b/libsrc/c64/crt0.s
index 1a35423b5..efa80b12e 100644
--- a/libsrc/c64/crt0.s
+++ b/libsrc/c64/crt0.s
@@ -38,10 +38,6 @@ Head:   .word   @Next
 
 Start:
 
-; Close open files
-
-	jsr	CLRCH
-
 ; Save the zero page locations we need
 
         ldx    	#zpspace-1
diff --git a/libsrc/pet/crt0.s b/libsrc/pet/crt0.s
index 496ef3b99..7be1d16fa 100644
--- a/libsrc/pet/crt0.s
+++ b/libsrc/pet/crt0.s
@@ -37,10 +37,6 @@ Head:   .word   @Next
 
 Start:
 
-; Close open files
-
-	jsr	CLRCH
-
 ; Save the zero page locations we need
 
         ldx	#zpspace-1
diff --git a/libsrc/plus4/crt0.s b/libsrc/plus4/crt0.s
index 41176214e..36f1c0211 100644
--- a/libsrc/plus4/crt0.s
+++ b/libsrc/plus4/crt0.s
@@ -42,10 +42,6 @@ Head:   .word   @Next
 
 Start:
 
-; Close open files
-
-  	jsr	$FFCC           ; CLRCH
-
 ; Save the zero page locations we need
 
         sei                     ; No interrupts since we're banking out the ROM
diff --git a/libsrc/vic20/crt0.s b/libsrc/vic20/crt0.s
index 1f39ab17e..e48506f33 100644
--- a/libsrc/vic20/crt0.s
+++ b/libsrc/vic20/crt0.s
@@ -37,10 +37,6 @@ Head:   .word   @Next
 
 Start:
 
-; Close open files
-
-	jsr	CLRCH
-
 ; Save the zero page locations we need
 
         ldx    	#zpspace-1