diff --git a/tests/periph_pm/main.c b/tests/periph_pm/main.c
index 71f72b8abb..63d16f97ef 100644
--- a/tests/periph_pm/main.c
+++ b/tests/periph_pm/main.c
@@ -35,6 +35,10 @@
 #endif
 #include "shell.h"
 
+#ifndef BTN0_INT_FLANK
+#define BTN0_INT_FLANK  GPIO_RISING
+#endif
+
 #ifdef MODULE_PM_LAYERED
 static int check_mode(int argc, char **argv)
 {
@@ -216,7 +220,6 @@ static void btn_cb(void *ctx)
 }
 #endif /* MODULE_PERIPH_GPIO_IRQ */
 
-
 /**
  * @brief   List of shell commands for this example.
  */
@@ -256,7 +259,7 @@ int main(void)
 
 #if defined(MODULE_PERIPH_GPIO_IRQ) && defined(BTN0_PIN)
     puts("using BTN0 as wake-up source");
-    gpio_init_int(BTN0_PIN, BTN0_MODE, GPIO_RISING, btn_cb, NULL);
+    gpio_init_int(BTN0_PIN, BTN0_MODE, BTN0_INT_FLANK, btn_cb, NULL);
 #endif
 
     /* run the shell and wait for the user to enter a mode */