diff --git a/ports/unix/Makefile b/ports/unix/Makefile
index 79b203b6b0..ae87a16252 100644
--- a/ports/unix/Makefile
+++ b/ports/unix/Makefile
@@ -149,6 +149,7 @@ SRC_C = \
 	alloc.c \
 	coverage.c \
 	fatfs_port.c \
+	supervisor/stub/stack.c \
 	supervisor/shared/translate.c \
 	$(SRC_MOD)
 
diff --git a/supervisor/stub/stack.c b/supervisor/stub/stack.c
index 4d88e51d23..9a9ecd32f6 100644
--- a/supervisor/stub/stack.c
+++ b/supervisor/stub/stack.c
@@ -24,11 +24,7 @@
  * THE SOFTWARE.
  */
 
-#include <stdbool.h>
-#include <stdint.h>
-
-void allocate_stack(void) {
-}
+#include "supervisor/shared/stack.h"
 
 bool stack_ok(void) {
     return true;
@@ -44,6 +40,7 @@ void stack_resize(void) {
 }
 
 void set_next_stack_size(uint32_t size) {
+    (void) size;
 }
 
 uint32_t get_current_stack_size(void) {