diff --git a/src/samd21/Kconfig b/src/samd21/Kconfig
index 0b526a08..a3d4d56d 100644
--- a/src/samd21/Kconfig
+++ b/src/samd21/Kconfig
@@ -6,6 +6,7 @@ config SAMD_SELECT
     bool
     default y
     select HAVE_GPIO
+    select HAVE_GPIO_BITBANGING
 
 config BOARD_DIRECTORY
     string