diff --git a/shared-bindings/displayio/__init__.c b/shared-bindings/displayio/__init__.c
index d0d3e5ae14..27f6c88ed1 100644
--- a/shared-bindings/displayio/__init__.c
+++ b/shared-bindings/displayio/__init__.c
@@ -40,7 +40,9 @@
 #include "shared-bindings/displayio/I2CDisplay.h"
 #include "shared-bindings/displayio/OnDiskBitmap.h"
 #include "shared-bindings/displayio/Palette.h"
+#if CIRCUITPY_PARALLELBUS
 #include "shared-bindings/paralleldisplay/ParallelBus.h"
+#endif
 #include "shared-bindings/displayio/Shape.h"
 #include "shared-bindings/displayio/TileGrid.h"
 
diff --git a/shared-bindings/paralleldisplay/ParallelBus.h b/shared-bindings/paralleldisplay/ParallelBus.h
index 2f9c8d10e3..cd9e32f9be 100644
--- a/shared-bindings/paralleldisplay/ParallelBus.h
+++ b/shared-bindings/paralleldisplay/ParallelBus.h
@@ -24,8 +24,7 @@
  * THE SOFTWARE.
  */
 
-#ifndef MICROPY_INCLUDED_SHARED_BINDINGS_DISPLAYBUSIO_PARALLELDISPLAY_H
-#define MICROPY_INCLUDED_SHARED_BINDINGS_DISPLAYBUSIO_PARALLELDISPLAY_H
+#pragma once
 
 #include "common-hal/paralleldisplay/ParallelBus.h"
 
@@ -50,5 +49,3 @@ void common_hal_paralleldisplay_parallelbus_send(mp_obj_t self, display_byte_typ
     display_chip_select_behavior_t chip_select, const uint8_t *data, uint32_t data_length);
 
 void common_hal_paralleldisplay_parallelbus_end_transaction(mp_obj_t self);
-
-#endif // MICROPY_INCLUDED_SHARED_BINDINGS_DISPLAYBUSIO_PARALLELDISPLAY_H
diff --git a/shared-module/displayio/Display.c b/shared-module/displayio/Display.c
index 40a2e31feb..f74b472bf4 100644
--- a/shared-module/displayio/Display.c
+++ b/shared-module/displayio/Display.c
@@ -29,7 +29,9 @@
 #include "py/runtime.h"
 #include "shared-bindings/displayio/FourWire.h"
 #include "shared-bindings/displayio/I2CDisplay.h"
+#if CIRCUITPY_PARALLELDISPLAY
 #include "shared-bindings/paralleldisplay/ParallelBus.h"
+#endif
 #include "shared-bindings/microcontroller/Pin.h"
 #include "shared-bindings/time/__init__.h"
 #include "shared-module/displayio/__init__.h"
diff --git a/shared-module/displayio/EPaperDisplay.c b/shared-module/displayio/EPaperDisplay.c
index 9731aa90f0..b1d06fbd72 100644
--- a/shared-module/displayio/EPaperDisplay.c
+++ b/shared-module/displayio/EPaperDisplay.c
@@ -31,7 +31,9 @@
 #include "shared-bindings/displayio/ColorConverter.h"
 #include "shared-bindings/displayio/FourWire.h"
 #include "shared-bindings/displayio/I2CDisplay.h"
+#if CIRCUITPY_PARALLELDISPLAY
 #include "shared-bindings/paralleldisplay/ParallelBus.h"
+#endif
 #include "shared-bindings/microcontroller/Pin.h"
 #include "shared-bindings/time/__init__.h"
 #include "shared-module/displayio/__init__.h"
diff --git a/shared-module/displayio/__init__.h b/shared-module/displayio/__init__.h
index 09f2f7ae08..5bfee4d67d 100644
--- a/shared-module/displayio/__init__.h
+++ b/shared-module/displayio/__init__.h
@@ -35,7 +35,9 @@
 #include "shared-bindings/displayio/FourWire.h"
 #include "shared-bindings/displayio/Group.h"
 #include "shared-bindings/displayio/I2CDisplay.h"
+#if CIRCUITPY_PARALLELDISPLAY
 #include "shared-bindings/paralleldisplay/ParallelBus.h"
+#endif
 #if CIRCUITPY_RGBMATRIX
 #include "shared-bindings/rgbmatrix/RGBMatrix.h"
 #endif
@@ -48,7 +50,9 @@ typedef struct {
         mp_obj_base_t bus_base;
         displayio_fourwire_obj_t fourwire_bus;
         displayio_i2cdisplay_obj_t i2cdisplay_bus;
+        #if CIRCUITPY_PARALLELDISPLAY
         paralleldisplay_parallelbus_obj_t parallel_bus;
+        #endif
         #if CIRCUITPY_RGBMATRIX
         rgbmatrix_rgbmatrix_obj_t rgbmatrix;
         #endif
diff --git a/shared-module/displayio/display_core.c b/shared-module/displayio/display_core.c
index d1efbf7ddc..114b274fd1 100644
--- a/shared-module/displayio/display_core.c
+++ b/shared-module/displayio/display_core.c
@@ -30,7 +30,9 @@
 #include "py/runtime.h"
 #include "shared-bindings/displayio/FourWire.h"
 #include "shared-bindings/displayio/I2CDisplay.h"
+#if CIRCUITPY_PARALLELDISPLAY
 #include "shared-bindings/paralleldisplay/ParallelBus.h"
+#endif
 #include "shared-bindings/microcontroller/Pin.h"
 #include "shared-bindings/time/__init__.h"
 #include "shared-module/displayio/__init__.h"