diff --git a/CHANGES b/CHANGES
index 65adff1..38176ad 100644
--- a/CHANGES
+++ b/CHANGES
@@ -239,6 +239,9 @@ corrections:
 	UDP-LISTEN failed with "...is not available". Thanks to Fred for
 	reporting this problem
 
+	Address FD was not read from when used bidirectionally. Thanks to David
+	Halls for reporting this bug.
+
 porting:
 	Red Hat issue 1020203: configure checks fail with some compilers.
 	Use case: clang
diff --git a/test.sh b/test.sh
index 30be1aa..2badac7 100755
--- a/test.sh
+++ b/test.sh
@@ -3968,7 +3968,7 @@ testchain "$N" "$TEST" "test|^test|test|^test|test|^test|test|^test|stdio" "pipe
 esac
 N=$((N+1))
 
-NAME=TOWLONGCHAINS
+NAME=TWOLONGCHAINS
 case "$TESTS" in
 *%$N%*|*%functions%*|*%chain%*|*%$NAME%*)
 TEST="$NAME: four-tests+stdio vs. four-tests+pipe"
@@ -12645,7 +12645,17 @@ esac
 N=$((N+1))
 
 
-echo "summary: $((N-1)) tests, $((numOK+numFAILED+numCANT)) selected; $numOK ok, $numFAIL failed, $numCANT could not be performed"
+NAME=FD_BI_WRITE
+case  "$TESTS" in
+*%$N%*|*%functions%*|*%chain%*|*%$NAME%*)
+TEST="$NAME: FD address in birectional context is"
+testecho "$N" "$TEST" "FD:0" "FD:1" "-T 2 $opts" "$val_t"
+esac
+N=$((N+1))
+
+
+
+echo "summary: $((N-1)) tests, $((numOK+numFAIL+numCANT)) selected; $numOK ok, $numFAIL failed, $numCANT could not be performed"
 
 if [ "$numFAIL" -gt 0 ]; then
     echo "FAILED: $listFAIL"
diff --git a/xio-fdnum.c b/xio-fdnum.c
index 1b73892..8b43781 100644
--- a/xio-fdnum.c
+++ b/xio-fdnum.c
@@ -61,8 +61,8 @@ static int xioopen_fdnum(int argc, const char *argv[], struct opt *opts,
       }
    } else {
       if (XIOWITHWR(rw)) {
+	 numrfd = numfd1;
 	 numwfd = numfd1;
-	 numrfd = -1;
       } else {
 	 numrfd = numfd1;
 	 numwfd = -1;