diff --git a/embassy-stm32/src/i2c/mod.rs b/embassy-stm32/src/i2c/mod.rs
index 0457595d2..a5ff61f3d 100644
--- a/embassy-stm32/src/i2c/mod.rs
+++ b/embassy-stm32/src/i2c/mod.rs
@@ -268,26 +268,6 @@ impl<'d, M: Mode, IM: MasterMode> I2c<'d, M, IM> {
         }
     }
 }
-impl<'d, M: Mode> I2c<'d, M, Master> {
-    /// Configure the I2C driver for slave operations, allowing for the driver to be used as a slave and a master (multimaster)
-    pub fn into_slave_multimaster(mut self, slave_addr_config: SlaveAddrConfig) -> I2c<'d, M, MultiMaster> {
-        let mut slave = I2c {
-            info: self.info,
-            state: self.state,
-            kernel_clock: self.kernel_clock,
-            scl: self.scl.take(),
-            sda: self.sda.take(),
-            tx_dma: self.tx_dma.take(),
-            rx_dma: self.rx_dma.take(),
-            #[cfg(feature = "time")]
-            timeout: self.timeout,
-            _phantom: PhantomData,
-            _phantom2: PhantomData,
-        };
-        slave.init_slave(slave_addr_config);
-        slave
-    }
-}
 
 impl<'d, M: Mode, IM: MasterMode> Drop for I2c<'d, M, IM> {
     fn drop(&mut self) {
diff --git a/embassy-stm32/src/i2c/v2.rs b/embassy-stm32/src/i2c/v2.rs
index c2560d819..acf4b3f12 100644
--- a/embassy-stm32/src/i2c/v2.rs
+++ b/embassy-stm32/src/i2c/v2.rs
@@ -694,6 +694,27 @@ impl<'d, IM: MasterMode> I2c<'d, Async, IM> {
     }
 }
 
+impl<'d, M: Mode> I2c<'d, M, Master> {
+    /// Configure the I2C driver for slave operations, allowing for the driver to be used as a slave and a master (multimaster)
+    pub fn into_slave_multimaster(mut self, slave_addr_config: SlaveAddrConfig) -> I2c<'d, M, MultiMaster> {
+        let mut slave = I2c {
+            info: self.info,
+            state: self.state,
+            kernel_clock: self.kernel_clock,
+            scl: self.scl.take(),
+            sda: self.sda.take(),
+            tx_dma: self.tx_dma.take(),
+            rx_dma: self.rx_dma.take(),
+            #[cfg(feature = "time")]
+            timeout: self.timeout,
+            _phantom: PhantomData,
+            _phantom2: PhantomData,
+        };
+        slave.init_slave(slave_addr_config);
+        slave
+    }
+}
+
 impl<'d, M: Mode> I2c<'d, M, MultiMaster> {
     pub(crate) fn init_slave(&mut self, config: SlaveAddrConfig) {
         self.info.regs.cr1().modify(|reg| {