diff --git a/en/device-dev/driver/driver-platform-dac-develop.md b/en/device-dev/driver/driver-platform-dac-develop.md
index 729172aeca6755cdb05a4f02a84012d3294e43aa..11585ba1168c289a2963112996f36391b97eec5e 100644
--- a/en/device-dev/driver/driver-platform-dac-develop.md
+++ b/en/device-dev/driver/driver-platform-dac-develop.md
@@ -396,7 +396,7 @@ The DAC module adaptation procedure is as follows:
         
           Return value
         
-          –
+          This function returns no value.
         
           Function description: