diff --git a/include/fcntl.h b/include/fcntl.h
index 4853fd1df..ff09f6f96 100644
--- a/include/fcntl.h
+++ b/include/fcntl.h
@@ -58,7 +58,7 @@ typedef long int off_t;
 
 /* Functions */
 int open (const char* name, int flags, ...);	/* May take a mode argument */
-int close (int fd);
+int __fastcall__ close (int fd);
 int write (int fd, const void* buf, unsigned count);
 int read (int fd, void* buf, unsigned count);
 int mkdir (const char* name, ...);		/* May take a mode argument */
diff --git a/libsrc/atari/close.s b/libsrc/atari/close.s
index 777143593..23d80360d 100644
--- a/libsrc/atari/close.s
+++ b/libsrc/atari/close.s
@@ -10,7 +10,6 @@
 	.import	fdtoiocb_down,__inviocb
 
 .proc	_close
-	jsr	popax
 	jsr	fdtoiocb_down		; get iocb index into X and decr. usage count
 	bmi	inverr
 	bne	ok			; not last one -> don't close yet