diff --git a/README.md b/README.md
index 0de4fab5..caeeccbb 100644
--- a/README.md
+++ b/README.md
@@ -261,7 +261,7 @@ If you want more precision, just set the
 | Variable | Default Value | Description |
 |----------|---------------|-------------|
 |`POWERLEVEL9K_COMMAND_EXECUTION_TIME_THRESHOLD`|3|Threshold above which to print this segment. Can be set to `0` to always print.|
-|`POWERLEVEL9K_COMMAND_EXECUTION_TIME_PRECISION=2`|2|Number of digits to use in the fractional part of the time value.|
+|`POWERLEVEL9K_COMMAND_EXECUTION_TIME_PRECISION`|2|Number of digits to use in the fractional part of the time value.|
 
 ##### custom_command