diff --git a/embassy-stm32/src/adc/v2.rs b/embassy-stm32/src/adc/v2.rs
index 9244e5d8..25b7ba96 100644
--- a/embassy-stm32/src/adc/v2.rs
+++ b/embassy-stm32/src/adc/v2.rs
@@ -153,7 +153,7 @@ impl Prescaler {
 
 pub struct Adc<'d, T: Instance> {
     sample_time: SampleTime,
-    vref: u32,
+    vref_mv: u32,
     resolution: Resolution,
     phantom: PhantomData<&'d mut T>,
 }
@@ -183,7 +183,7 @@ where
         Self {
             sample_time: Default::default(),
             resolution: Resolution::default(),
-            vref: VREF_DEFAULT_MV,
+            vref_mv: VREF_DEFAULT_MV,
             phantom: PhantomData,
         }
     }
@@ -199,13 +199,13 @@ where
     /// Set VREF value in millivolts. This value is used for [to_millivolts()] sample conversion.
     ///
     /// Use this if you have a known precise VREF (VDDA) pin reference voltage.
-    pub fn set_vref(&mut self, vref: u32) {
-        self.vref = vref;
+    pub fn set_vref_mv(&mut self, vref_mv: u32) {
+        self.vref_mv = vref_mv;
     }
 
     /// Convert a measurement to millivolts
     pub fn to_millivolts(&self, sample: u16) -> u16 {
-        ((u32::from(sample) * self.vref) / self.resolution.to_max_count()) as u16
+        ((u32::from(sample) * self.vref_mv) / self.resolution.to_max_count()) as u16
     }
 
     /// Perform a single conversion.
diff --git a/embassy-stm32/src/adc/v3.rs b/embassy-stm32/src/adc/v3.rs
index d8cac072..0f109088 100644
--- a/embassy-stm32/src/adc/v3.rs
+++ b/embassy-stm32/src/adc/v3.rs
@@ -205,7 +205,7 @@ pub use sample_time::SampleTime;
 
 pub struct Adc<'d, T: Instance> {
     sample_time: SampleTime,
-    vref: u32,
+    vref_mv: u32,
     resolution: Resolution,
     phantom: PhantomData<&'d mut T>,
 }
@@ -244,7 +244,7 @@ impl<'d, T: Instance> Adc<'d, T> {
         Self {
             sample_time: Default::default(),
             resolution: Resolution::default(),
-            vref: VREF_DEFAULT_MV,
+            vref_mv: VREF_DEFAULT_MV,
             phantom: PhantomData,
         }
     }
@@ -307,7 +307,7 @@ impl<'d, T: Instance> Adc<'d, T> {
 
         self.sample_time = old_sample_time;
 
-        self.vref = (VREF_CALIB_MV * u32::from(vrefint_cal)) / u32::from(vrefint_samp);
+        self.vref_mv = (VREF_CALIB_MV * u32::from(vrefint_cal)) / u32::from(vrefint_samp);
     }
 
     pub fn set_sample_time(&mut self, sample_time: SampleTime) {
@@ -321,13 +321,13 @@ impl<'d, T: Instance> Adc<'d, T> {
     /// Set VREF value in millivolts. This value is used for [to_millivolts()] sample conversion.
     ///
     /// Use this if you have a known precise VREF (VDDA) pin reference voltage.
-    pub fn set_vref(&mut self, vref: u32) {
-        self.vref = vref;
+    pub fn set_vref_mv(&mut self, vref_mv: u32) {
+        self.vref_mv = vref_mv;
     }
 
     /// Convert a measurement to millivolts
     pub fn to_millivolts(&self, sample: u16) -> u16 {
-        ((u32::from(sample) * self.vref) / self.resolution.to_max_count()) as u16
+        ((u32::from(sample) * self.vref_mv) / self.resolution.to_max_count()) as u16
     }
 
     /*
diff --git a/embassy-stm32/src/adc/v4.rs b/embassy-stm32/src/adc/v4.rs
index cc210a6d..d356d7b6 100644
--- a/embassy-stm32/src/adc/v4.rs
+++ b/embassy-stm32/src/adc/v4.rs
@@ -322,7 +322,7 @@ impl Prescaler {
 
 pub struct Adc<'d, T: Instance> {
     sample_time: SampleTime,
-    vref: u32,
+    vref_mv: u32,
     resolution: Resolution,
     phantom: PhantomData<&'d mut T>,
 }
@@ -360,7 +360,7 @@ impl<'d, T: Instance + crate::rcc::RccPeripheral> Adc<'d, T> {
 
         let mut s = Self {
             sample_time: Default::default(),
-            vref: VREF_DEFAULT_MV,
+            vref_mv: VREF_DEFAULT_MV,
             resolution: Resolution::default(),
             phantom: PhantomData,
         };
@@ -470,13 +470,13 @@ impl<'d, T: Instance + crate::rcc::RccPeripheral> Adc<'d, T> {
     /// Set VREF value in millivolts. This value is used for [to_millivolts()] sample conversion.
     ///
     /// Use this if you have a known precise VREF (VDDA) pin reference voltage.
-    pub fn set_vref(&mut self, vref: u32) {
-        self.vref = vref;
+    pub fn set_vref_mv(&mut self, vref_mv: u32) {
+        self.vref_mv = vref_mv;
     }
 
     /// Convert a measurement to millivolts
     pub fn to_millivolts(&self, sample: u16) -> u16 {
-        ((u32::from(sample) * self.vref) / self.resolution.to_max_count()) as u16
+        ((u32::from(sample) * self.vref_mv) / self.resolution.to_max_count()) as u16
     }
 
     /// Perform a single conversion.