diff --git a/examples/device/cdc_msc_hid/src/tusb_config.h b/examples/device/cdc_msc_hid/src/tusb_config.h
index e55dc9d01..31ae2b883 100644
--- a/examples/device/cdc_msc_hid/src/tusb_config.h
+++ b/examples/device/cdc_msc_hid/src/tusb_config.h
@@ -62,7 +62,7 @@
 #endif
 
 #ifndef CFG_TUSB_MEM_ALIGN
-#define CFG_TUSB_MEM_ALIGN          TU_ATTR_ALIGNED(4)
+#define CFG_TUSB_MEM_ALIGN          __attribute__ ((aligned(4)))
 #endif
 
 //--------------------------------------------------------------------
diff --git a/examples/device/cdc_msc_hid_freertos/src/tusb_config.h b/examples/device/cdc_msc_hid_freertos/src/tusb_config.h
index 76ec948e5..2a250ac83 100644
--- a/examples/device/cdc_msc_hid_freertos/src/tusb_config.h
+++ b/examples/device/cdc_msc_hid_freertos/src/tusb_config.h
@@ -62,7 +62,7 @@
 #endif
 
 #ifndef CFG_TUSB_MEM_ALIGN
-#define CFG_TUSB_MEM_ALIGN          TU_ATTR_ALIGNED(4)
+#define CFG_TUSB_MEM_ALIGN          __attribute__ ((aligned(4)))
 #endif
 
 //--------------------------------------------------------------------
diff --git a/examples/device/hid_generic_inout/src/tusb_config.h b/examples/device/hid_generic_inout/src/tusb_config.h
index fb19d5169..d97cd533e 100644
--- a/examples/device/hid_generic_inout/src/tusb_config.h
+++ b/examples/device/hid_generic_inout/src/tusb_config.h
@@ -62,7 +62,7 @@
 #endif
 
 #ifndef CFG_TUSB_MEM_ALIGN
-#define CFG_TUSB_MEM_ALIGN          TU_ATTR_ALIGNED(4)
+#define CFG_TUSB_MEM_ALIGN          __attribute__ ((aligned(4)))
 #endif
 
 //--------------------------------------------------------------------
diff --git a/examples/device/midi_test/src/main.c b/examples/device/midi_test/src/main.c
index 0cb9b522d..03b4554c9 100644
--- a/examples/device/midi_test/src/main.c
+++ b/examples/device/midi_test/src/main.c
@@ -32,8 +32,9 @@
 
 /* This MIDI example send sequence of note (on/off) repeatedly. To test on PC, you need to install
  * synth software and midi connection management software. On
- * - Linux (Ubuntu) : install qsynth, qjackctl. Then connect TinyUSB output port to FLUID Synth input port
- *
+ * - Linux (Ubuntu): install qsynth, qjackctl. Then connect TinyUSB output port to FLUID Synth input port
+ * - Windows: install MIDI-OX
+ * - MacOS: SimpleSynth
  */
 
 //--------------------------------------------------------------------+
diff --git a/examples/device/midi_test/src/tusb_config.h b/examples/device/midi_test/src/tusb_config.h
index 6ea2f43db..a6e3ad710 100644
--- a/examples/device/midi_test/src/tusb_config.h
+++ b/examples/device/midi_test/src/tusb_config.h
@@ -62,7 +62,7 @@
 #endif
 
 #ifndef CFG_TUSB_MEM_ALIGN
-#define CFG_TUSB_MEM_ALIGN          TU_ATTR_ALIGNED(4)
+#define CFG_TUSB_MEM_ALIGN          __attribute__ ((aligned(4)))
 #endif
 
 //--------------------------------------------------------------------
diff --git a/examples/device/msc_dual_lun/src/tusb_config.h b/examples/device/msc_dual_lun/src/tusb_config.h
index db9974ea3..3b87d9f21 100644
--- a/examples/device/msc_dual_lun/src/tusb_config.h
+++ b/examples/device/msc_dual_lun/src/tusb_config.h
@@ -62,7 +62,7 @@
 #endif
 
 #ifndef CFG_TUSB_MEM_ALIGN
-#define CFG_TUSB_MEM_ALIGN          TU_ATTR_ALIGNED(4)
+#define CFG_TUSB_MEM_ALIGN          __attribute__ ((aligned(4)))
 #endif
 
 //--------------------------------------------------------------------
diff --git a/examples/host/cdc_msc_hid/src/tusb_config.h b/examples/host/cdc_msc_hid/src/tusb_config.h
index 9662223b1..1a9c8fa5c 100644
--- a/examples/host/cdc_msc_hid/src/tusb_config.h
+++ b/examples/host/cdc_msc_hid/src/tusb_config.h
@@ -63,7 +63,7 @@
 #endif
 
 #ifndef CFG_TUSB_MEM_ALIGN
-#define CFG_TUSB_MEM_ALIGN          TU_ATTR_ALIGNED(4)
+#define CFG_TUSB_MEM_ALIGN          __attribute__ ((aligned(4)))
 #endif
 
 //--------------------------------------------------------------------
diff --git a/test/test/support/tusb_config.h b/test/test/support/tusb_config.h
index a332481f8..d49576850 100644
--- a/test/test/support/tusb_config.h
+++ b/test/test/support/tusb_config.h
@@ -63,7 +63,7 @@
 #endif
 
 #ifndef CFG_TUSB_MEM_ALIGN
-#define CFG_TUSB_MEM_ALIGN          TU_ATTR_ALIGNED(4)
+#define CFG_TUSB_MEM_ALIGN          __attribute__ ((aligned(4)))
 #endif
 
 //--------------------------------------------------------------------