diff --git a/embassy-stm32/src/adc/mod.rs b/embassy-stm32/src/adc/mod.rs
index bdb1ab8a..0eeadfa9 100644
--- a/embassy-stm32/src/adc/mod.rs
+++ b/embassy-stm32/src/adc/mod.rs
@@ -126,6 +126,9 @@ foreach_peripheral!(
 
         #[cfg(not(any(stm32g4x1, stm32g4x2, stm32g4x3, stm32g4x4)))]
         impl crate::adc::Instance for peripherals::ADC4 {}
+    };
+    (adc, ADC5) => {
+
     };
     (adc, $inst:ident) => {
         impl crate::adc::sealed::Instance for peripherals::$inst {