diff --git a/tests/periph_gpio_ll/Makefile b/tests/periph_gpio_ll/Makefile
index f106f192f3..a87abfd096 100644
--- a/tests/periph_gpio_ll/Makefile
+++ b/tests/periph_gpio_ll/Makefile
@@ -46,11 +46,11 @@ CFLAGS += -DPIN_OUT_0=$(PIN_OUT_0)
 CFLAGS += -DPIN_OUT_1=$(PIN_OUT_1)
 CFLAGS += -DLOW_ROM=$(LOW_ROM)
 
-ifneq ($(CPU_FAM),esp32)
+ifneq ($(MCU),esp32)
   # We only need 1 thread (+ the Idle thread on some platforms) and we really
   # want this app working on all boards.
   CFLAGS += -DMAXTHREADS=2
 else
-  # ESP32 uses an extra thread for esp_timer
+  # ESP32x SoCs uses an extra thread for esp_timer
   CFLAGS += -DMAXTHREADS=3
 endif