diff --git a/boards/stk3200/Makefile.dep b/boards/stk3200/Makefile.dep
index b38ada67a7..c27f40cacf 100644
--- a/boards/stk3200/Makefile.dep
+++ b/boards/stk3200/Makefile.dep
@@ -3,9 +3,6 @@ ifneq (,$(filter saul_default,$(USEMODULE)))
   USEMODULE += saul_gpio
 endif
 
-# limit the stack size so most tests and examples compile
-CFLAGS += -DTHREAD_STACKSIZE_DEFAULT=512
-
 # add board common drivers
 USEMODULE += boards_common_silabs
 USEMODULE += silabs_bc
diff --git a/boards/stk3200/Makefile.include b/boards/stk3200/Makefile.include
index 149d8aeebb..9d029b224e 100644
--- a/boards/stk3200/Makefile.include
+++ b/boards/stk3200/Makefile.include
@@ -1,5 +1,8 @@
 # setup JLink for flashing
 JLINK_PRE_FLASH = r
 
+# limit the stack size so most tests and examples compile
+CFLAGS += -DTHREAD_STACKSIZE_DEFAULT=512
+
 # include board common
 include $(RIOTBOARD)/common/silabs/Makefile.include