diff --git a/apps/wolfssh/wolfssh.c b/apps/wolfssh/wolfssh.c
index 9448e3f34..751c5ec01 100644
--- a/apps/wolfssh/wolfssh.c
+++ b/apps/wolfssh/wolfssh.c
@@ -162,12 +162,26 @@ static void modes_clear(void)
 {
     WOLFSSH_TERMIOS term = oldTerm;
 
-    term.c_lflag &= ~(ICANON | ISIG | IEXTEN | ECHO | ECHOE | ECHOK
-            | ECHONL | ECHOPRT | NOFLSH | TOSTOP | FLUSHO
-            | PENDIN | EXTPROC);
+    term.c_lflag &= ~(ICANON | ISIG | IEXTEN | ECHO | ECHOE
+        | ECHOK | ECHONL | NOFLSH | TOSTOP);
 
-    term.c_iflag &= ~(ISTRIP | INLCR | ICRNL | IGNCR | IXON | IXOFF
-            | IXANY | IGNBRK | INPCK | PARMRK);
+    /* check macros set for some BSD dependent and missing on
+     * QNX flags */
+#ifdef ECHOPRT
+    term.c_lflag &= ~(ECHOPRT);
+#endif
+#ifdef FLUSHO
+    term.c_lflag &= ~(FLUSHO);
+#endif
+#ifdef PENDIN
+    term.c_lflag &= ~(PENDIN);
+#endif
+#ifdef EXTPROC
+    term.c_lflag &= ~(EXTPROC);
+#endif
+
+    term.c_iflag &= ~(ISTRIP | INLCR | ICRNL | IGNCR | IXON
+        | IXOFF | IXANY | IGNBRK | INPCK | PARMRK);
 #ifdef IUCLC
     term.c_iflag &= ~IUCLC;
 #endif
@@ -178,8 +192,10 @@ static void modes_clear(void)
     term.c_oflag &= ~OLCUC;
 #endif
 
-    term.c_cflag &= ~(CSTOPB | PARENB | PARODD | CLOCAL | CRTSCTS);
-
+    term.c_cflag &= ~(CSTOPB | PARENB | PARODD | CLOCAL);
+#ifdef CRTSCTS
+    term.c_cflag &= ~(CRTSCTS);
+#endif
     tcsetattr(STDIN_FILENO, TCSANOW, &term);
 }
 
diff --git a/examples/client/common.c b/examples/client/common.c
index 3ae6a7316..da2da1ea9 100644
--- a/examples/client/common.c
+++ b/examples/client/common.c
@@ -556,8 +556,22 @@ int ClientSetEcho(int type)
             newTerm.c_lflag &= ~ECHO;
             if (type == 2) {
                 newTerm.c_lflag &= ~(ICANON | ISIG | IEXTEN | ECHO | ECHOE
-                | ECHOK | ECHONL | ECHOPRT | NOFLSH | TOSTOP | FLUSHO
-                | PENDIN | EXTPROC);
+                    | ECHOK | ECHONL | NOFLSH | TOSTOP);
+
+                /* check macros set for some BSD dependent and not missing on
+                 * QNX flags */
+            #ifdef ECHOPRT
+                newTerm.c_lflag &= ~(ECHOPRT);
+            #endif
+            #ifdef FLUSHO
+                newTerm.c_lflag &= ~(FLUSHO);
+            #endif
+            #ifdef PENDIN
+                newTerm.c_lflag &= ~(PENDIN);
+            #endif
+            #ifdef EXTPROC
+                newTerm.c_lflag &= ~(EXTPROC);
+            #endif
 
                 newTerm.c_iflag &= ~(ISTRIP | INLCR | ICRNL | IGNCR | IXON
                 | IXOFF | IXANY | IGNBRK | INPCK | PARMRK);
@@ -571,8 +585,10 @@ int ClientSetEcho(int type)
                 newTerm.c_oflag &= ~OLCUC;
             #endif
 
-                newTerm.c_cflag &= ~(CSTOPB | PARENB | PARODD | CLOCAL
-                | CRTSCTS);
+                newTerm.c_cflag &= ~(CSTOPB | PARENB | PARODD | CLOCAL);
+            #ifdef CRTSCTS
+                newTerm.c_cflag &= ~(CRTSCTS);
+            #endif
             }
             else {
                 newTerm.c_lflag |= (ICANON | ECHONL);