diff --git a/src/internal.c b/src/internal.c
index 4a822dcaa..ac18d46ec 100644
--- a/src/internal.c
+++ b/src/internal.c
@@ -46,7 +46,11 @@
 
 #if defined(DEBUG_WOLFSSL) || defined(SHOW_SECRETS) || defined(CHACHA_AEAD_TEST)
     #ifdef FREESCALE_MQX
-        #include <fio.h>
+        #if MQX_USE_IO_OLD
+            #include <fio.h>
+        #else
+            #include <nio.h>
+        #endif
     #else
         #include <stdio.h>
     #endif
diff --git a/src/keys.c b/src/keys.c
index 1b15dbb93..2c232a762 100644
--- a/src/keys.c
+++ b/src/keys.c
@@ -31,7 +31,11 @@
 #include <wolfssl/error-ssl.h>
 #if defined(SHOW_SECRETS) || defined(CHACHA_AEAD_TEST)
     #ifdef FREESCALE_MQX
-        #include <fio.h>
+        #if MQX_USE_IO_OLD
+            #include <fio.h>
+        #else
+            #include <nio.h>
+        #endif
     #else
         #include <stdio.h>
     #endif
diff --git a/wolfcrypt/benchmark/benchmark.c b/wolfcrypt/benchmark/benchmark.c
index c9a15e277..ba36e1563 100644
--- a/wolfcrypt/benchmark/benchmark.c
+++ b/wolfcrypt/benchmark/benchmark.c
@@ -32,7 +32,11 @@
 
 #ifdef FREESCALE_MQX
     #include <mqx.h>
-    #include <fio.h>
+    #if MQX_USE_IO_OLD
+        #include <fio.h>
+    #else
+        #include <nio.h>
+    #endif
 #else
     #include <stdio.h>
 #endif
diff --git a/wolfcrypt/src/asn.c b/wolfcrypt/src/asn.c
index c9aafe289..b17b44154 100644
--- a/wolfcrypt/src/asn.c
+++ b/wolfcrypt/src/asn.c
@@ -67,7 +67,11 @@
 
 #ifdef WOLFSSL_DEBUG_ENCODING
     #ifdef FREESCALE_MQX
-        #include <fio.h>
+        #if MQX_USE_IO_OLD
+            #include <fio.h>
+        #else
+            #include <nio.h>
+        #endif
     #else
         #include <stdio.h>
     #endif
diff --git a/wolfcrypt/src/integer.c b/wolfcrypt/src/integer.c
index aadc04ed4..49b3fe195 100644
--- a/wolfcrypt/src/integer.c
+++ b/wolfcrypt/src/integer.c
@@ -47,7 +47,11 @@
 
 #ifdef SHOW_GEN
     #ifdef FREESCALE_MQX
-        #include <fio.h>
+        #if MQX_USE_IO_OLD
+            #include <fio.h>
+        #else
+            #include <nio.h>
+        #endif
     #else
         #include <stdio.h>
     #endif
diff --git a/wolfcrypt/src/logging.c b/wolfcrypt/src/logging.c
index 321530616..f2d155bb0 100644
--- a/wolfcrypt/src/logging.c
+++ b/wolfcrypt/src/logging.c
@@ -90,7 +90,11 @@ void wolfSSL_Debugging_OFF(void)
 #ifdef DEBUG_WOLFSSL
 
 #ifdef FREESCALE_MQX
-    #include <fio.h>
+    #if MQX_USE_IO_OLD
+        #include <fio.h>
+    #else
+        #include <nio.h>
+    #endif
 #else
     #include <stdio.h>   /* for default printf stuff */
 #endif
diff --git a/wolfcrypt/test/test.c b/wolfcrypt/test/test.c
index c11e77034..71c62f99b 100644
--- a/wolfcrypt/test/test.c
+++ b/wolfcrypt/test/test.c
@@ -126,8 +126,12 @@
 
 #ifdef FREESCALE_MQX
     #include <mqx.h>
-    #include <fio.h>
     #include <stdlib.h>
+    #if MQX_USE_IO_OLD
+        #include <fio.h>
+    #else
+        #include <nio.h>
+    #endif
 #else
     #include <stdio.h>
 #endif
diff --git a/wolfssl/ssl.h b/wolfssl/ssl.h
index 25b86a6c5..863dcb0c9 100644
--- a/wolfssl/ssl.h
+++ b/wolfssl/ssl.h
@@ -32,7 +32,11 @@
 
 #ifndef NO_FILESYSTEM
     #ifdef FREESCALE_MQX
-        #include <fio.h>
+        #if MQX_USE_IO_OLD
+            #include <fio.h>
+        #else
+            #include <nio.h>
+        #endif
     #else
         #include <stdio.h>   /* ERR_printf */
     #endif
diff --git a/wolfssl/wolfcrypt/settings.h b/wolfssl/wolfcrypt/settings.h
index 5fb09d2b6..6c10ddf2a 100644
--- a/wolfssl/wolfcrypt/settings.h
+++ b/wolfssl/wolfcrypt/settings.h
@@ -464,7 +464,11 @@
     #include "mqx.h"
     #ifndef NO_FILESYSTEM
         #include "mfs.h"
-        #include "fio.h"
+        #if MQX_USE_IO_OLD
+            #include "fio.h"
+        #else
+            #include "nio.h"
+        #endif
     #endif
     #ifndef SINGLE_THREADED
         #include "mutex.h"