diff --git a/CHANGES b/CHANGES
index 1e5d16a..2861256 100644
--- a/CHANGES
+++ b/CHANGES
@@ -5,6 +5,12 @@ Corrections:
 	Thanks to Joe Strout and others for reporting this bug.
 	Thanks to Andrew Childs and others for sending a patch.
 
+	Under certain circumstances, termios options of the first address were
+	applied to the second address, resulting in error
+	"Inappropriate ioctl for device" 
+	This affected version 1.7.3.3 only.
+	Thanks to Ivan J. for reporting this issue.
+
 ####################### V 1.7.3.3:
 
 Corrections:
diff --git a/test.sh b/test.sh
index 2be851e..30d1a25 100755
--- a/test.sh
+++ b/test.sh
@@ -13027,6 +13027,40 @@ esac
 N=$((N+1))
 
 
+# test for a bug in Socat version 1.7.3.3 where
+# termios options of the first address were applied to the second address.
+NAME=TERMIOS_PH_ALL
+case "$TESTS" in
+*%$N%*|*%functions%*|*%bugs%*|*%termios%*|*%$NAME%*)
+TEST="$NAME: are termios options applied to the correct address"
+# add a termios option to the first address, a tty, and have a second address
+# with pipe. If no error occurs the termios option was not applied to the pipe,
+# thus the test succeeded.
+if ! eval $NUMCOND; then :; else
+tf="$td/test$N.stdout"
+te="$td/test$N.stderr"
+tdiff="$td/test$N.diff"
+da="test$N $(date) $RANDOM"
+CMD0="$TRACE $SOCAT $opts -T 1 STDIO,echo=0 EXEC:cat"
+printf "test $F_n $TEST... " $N
+$CMD0 2>"${te}0"
+rc0=$?
+if [ $rc0 -eq 0 ]; then
+    $PRINTF "$OK\n"
+    numOK=$((numOK+1))
+else
+    $PRINTF "$FAILED\n"
+    echo "$CMD0"
+    numFAIL=$((numFAIL+1))
+    listFAIL="$listFAIL $N"
+fi
+fi # NUMCOND
+ ;;
+esac
+PORT=$((PORT+1))
+N=$((N+1))
+
+
 ##################################################################################
 #=================================================================================
 # here come tests that might affect your systems integrity. Put normal tests
diff --git a/xioopts.c b/xioopts.c
index 56b46c4..e11e9c0 100644
--- a/xioopts.c
+++ b/xioopts.c
@@ -3581,7 +3581,7 @@ int applyopts(int fd, struct opt *opts, enum e_phase phase) {
    }
 
 #if WITH_TERMIOS
-   if (phase == PH_FD) {
+   if (phase == PH_FD || phase == PH_ALL) {
       xiotermios_flush(fd);
    }
 #endif /* WITH_TERMIOS */