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-rw-r--r--libguile/ioext.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/libguile/ioext.c b/libguile/ioext.c
index 1ac7eed7c..14e06a80e 100644
--- a/libguile/ioext.c
+++ b/libguile/ioext.c
@@ -437,7 +437,7 @@ non-file device, otherwise @code{#f}.")
port = SCM_COERCE_OUTPORT (port);
- if (!(SCM_NIMP (port) && SCM_OPFPORTP (port)))
+ if (!SCM_OPFPORTP (port))
return SCM_BOOL_F;
rv = isatty (SCM_FPORT_FDES (port));