diff --git a/soc/st/stm32/common/CMakeLists.txt b/soc/st/stm32/common/CMakeLists.txt
index 965200f1cfd4..6d97ebd9ac0f 100644
--- a/soc/st/stm32/common/CMakeLists.txt
+++ b/soc/st/stm32/common/CMakeLists.txt
@@ -26,3 +26,10 @@ endif()
 if (CONFIG_STM32_WKUP_PINS)
   zephyr_sources(stm32_wkup_pins.c)
 endif()
+
+if (CONFIG_PM AND CONFIG_STM32_ENABLE_DEBUG_SLEEP_STOP)
+  message(WARNING "\
+SoC Power Management (CONFIG_PM) enabled but the DBGMCU is still enabled \
+(CONFIG_STM32_ENABLE_DEBUG_SLEEP_STOP). The SoC will use more power than expected \
+in STOP modes due to internal oscillators that remain active.")
+endif()