diff --git a/src/shell/scripts/omp.nu b/src/shell/scripts/omp.nu
index b30d22a4..47ffee01 100644
--- a/src/shell/scripts/omp.nu
+++ b/src/shell/scripts/omp.nu
@@ -11,6 +11,11 @@ let-env NU_VERSION = (version | get version)
 let-env PROMPT_MULTILINE_INDICATOR = (^::OMP:: print secondary $"--config=($env.POSH_THEME)" --shell=nu $"--shell-version=($env.NU_VERSION)")
 
 let-env PROMPT_COMMAND = {
+    # We have to do this because the initial value of `$env.CMD_DURATION_MS` is always `0823`,
+    # which is an official setting.
+    # See https://github.com/nushell/nushell/discussions/6402#discussioncomment-3466687.
+    let cmd_duration = if $env.CMD_DURATION_MS == "0823" { 0 } else { $env.CMD_DURATION_MS }
+
     let width = (term size -c | get columns | into string)
-    ^::OMP:: print primary $"--config=($env.POSH_THEME)" --shell=nu $"--shell-version=($env.NU_VERSION)" $"--execution-time=($env.CMD_DURATION_MS)" $"--error=($env.LAST_EXIT_CODE)" $"--terminal-width=($width)"
+    ^::OMP:: print primary $"--config=($env.POSH_THEME)" --shell=nu $"--shell-version=($env.NU_VERSION)" $"--execution-time=($cmd_duration)" $"--error=($env.LAST_EXIT_CODE)" $"--terminal-width=($width)"
 }