diff --git a/src/main/drivers/bus_i2c_stm32f10x.c b/src/main/drivers/bus_i2c_stm32f10x.c
index c7e972b2d7..72cf8769c2 100644
--- a/src/main/drivers/bus_i2c_stm32f10x.c
+++ b/src/main/drivers/bus_i2c_stm32f10x.c
@@ -422,6 +422,9 @@ void i2cInit(I2CDevice device)
 
     I2C_Cmd(i2c->dev, ENABLE);
     I2C_Init(i2c->dev, &i2cInit);
+
+    I2C_StretchClockCmd(i2c->dev, ENABLE);
+    
     
     // I2C ER Interrupt
     nvic.NVIC_IRQChannel = i2c->er_irq;
diff --git a/src/main/drivers/bus_i2c_stm32f30x.c b/src/main/drivers/bus_i2c_stm32f30x.c
index cc78da8d60..11704a3f90 100644
--- a/src/main/drivers/bus_i2c_stm32f30x.c
+++ b/src/main/drivers/bus_i2c_stm32f30x.c
@@ -107,6 +107,8 @@ void i2cInit(I2CDevice device)
     
     I2C_Init(I2Cx, &i2cInit);
 
+    I2C_StretchClockCmd(I2Cx, ENABLE);
+      
     I2C_Cmd(I2Cx, ENABLE);
 }