1 files changed, 8 insertions, 2 deletions
diff --git a/io.c b/io.c
index e8007819b2..8927fad927 100644
--- a/io.c
+++ b/io.c
@@ -3029,8 +3029,14 @@ pipe_open(int argc, VALUE *argv, const char *mode)
     /* parent */
     if (pid == -1) {
 	int e = errno;
-	close(arg.pair[0]);
-	close(arg.pair[1]);
+	if ((modef & FMODE_READABLE)) {
+	    close(arg.pair[0]);
+	    close(arg.pair[1]);
+	}
+	if ((modef & FMODE_WRITABLE)) {
+	    close(arg.pair[0]);
+	    close(arg.pair[1]);
+	}
 	errno = e;
 	rb_sys_fail(cmd);
     }