1 files changed, 1 insertions, 1 deletions
diff --git a/toke.c b/toke.c
index c59a5bc2f5..d39f2da0c2 100644
--- a/toke.c
+++ b/toke.c
@@ -1347,7 +1347,7 @@ filter_read(int idx, SV *buf_sv, int maxlen)
     /* Call function. The function is expected to 	*/
     /* call "FILTER_READ(idx+1, buf_sv)" first.		*/
     /* Return: <0:error, =0:eof, >0:not eof 		*/
-    return (*funcp)(idx, buf_sv, maxlen);
+    return (*funcp)(THIS_ idx, buf_sv, maxlen);
 }
 
 STATIC char *