diff --git a/tests/periph/selftest_shield/main.c b/tests/periph/selftest_shield/main.c
index 44ce2fbab7..ad4316c95f 100644
--- a/tests/periph/selftest_shield/main.c
+++ b/tests/periph/selftest_shield/main.c
@@ -554,6 +554,9 @@ static bool periph_gpio_irq_test_falling(void)
     brief_delay();
     failed |= TEST(atomic_load(&cnt) == 3);
 
+    /* disable IRQ again to not have side effects */
+    gpio_irq_disable(ARDUINO_PIN_3);
+
     print_result(failed);
     return failed;
 }
@@ -617,6 +620,9 @@ static bool periph_gpio_irq_test_rising(void)
     brief_delay();
     failed |= TEST(atomic_load(&cnt) == 3);
 
+    /* disable IRQ again to not have side effects */
+    gpio_irq_disable(ARDUINO_PIN_3);
+
     print_result(failed);
     return failed;
 }