diff --git a/crates/nu-std/std/log.nu b/crates/nu-std/std/log.nu
index e53d95a15a..5117460be7 100644
--- a/crates/nu-std/std/log.nu
+++ b/crates/nu-std/std/log.nu
@@ -36,8 +36,8 @@ export def log-short-prefix [] {
     }
 }
 export-env {
-    $env.NU_LOG_FORMAT = $"%ANSI_START%%DATE%|%LEVEL%|%MSG%%ANSI_STOP%"
-    $env.NU_LOG_DATE_FORMAT = "%Y-%m-%dT%H:%M:%S%.3f"
+    $env.NU_LOG_FORMAT = $env.NU_LOG_FORMAT? | default "%ANSI_START%%DATE%|%LEVEL%|%MSG%%ANSI_STOP%"
+    $env.NU_LOG_DATE_FORMAT = $env.NU_LOG_DATE_FORMAT? | default "%Y-%m-%dT%H:%M:%S%.3f"
 }
 
 def log-types [] {
diff --git a/crates/nu-test-support/src/macros.rs b/crates/nu-test-support/src/macros.rs
index 6fd3a8c307..3104c04e7d 100644
--- a/crates/nu-test-support/src/macros.rs
+++ b/crates/nu-test-support/src/macros.rs
@@ -143,7 +143,7 @@ macro_rules! nu_with_std {
         cwd: $value:expr,
         $($rest:tt)*
     ) => {
-        nu!(@options [ $($options)* cwd => $crate::fs::in_directory($value) ; ] $($rest)*)
+        nu_with_std!(@options [ $($options)* cwd => $crate::fs::in_directory($value) ; ] $($rest)*)
     };
     // For all other options, we call `.into()` on the `$value` and hope for the best. ;)
     (
@@ -151,7 +151,7 @@ macro_rules! nu_with_std {
         $field:ident : $value:expr,
         $($rest:tt)*
     ) => {
-        nu!(@options [ $($options)* $field => $value.into() ; ] $($rest)*)
+        nu_with_std!(@options [ $($options)* $field => $value.into() ; ] $($rest)*)
     };
 
     // When the `$field: $value,` pairs are all parsed, the next tokens are the `$path` and any
@@ -163,11 +163,11 @@ macro_rules! nu_with_std {
         $(,)*
     ) => {{
         // Here we parse the options into a `NuOpts` struct
-        let opts = nu!(@nu_opts $($options)*);
+        let opts = nu_with_std!(@nu_opts $($options)*);
         // and format the `$path` using the `$part`s
-        let path = nu!(@format_path $path, $($part),*);
+        let path = nu_with_std!(@format_path $path, $($part),*);
         // Then finally we go to the `@main` phase, where the actual work is done.
-        nu!(@main opts, path)
+        nu_with_std!(@main opts, path)
     }};
 
     // Create the NuOpts struct from the `field => value ;` pairs
@@ -196,7 +196,7 @@ macro_rules! nu_with_std {
 
     // This is the entrypoint for this macro.
     ($($token:tt)*) => {{
-        nu!(@options [ ] $($token)*)
+        nu_with_std!(@options [ ] $($token)*)
     }};
 }
 
diff --git a/tests/shell/environment/env.rs b/tests/shell/environment/env.rs
index 1a9c14b18a..e07259a500 100644
--- a/tests/shell/environment/env.rs
+++ b/tests/shell/environment/env.rs
@@ -2,7 +2,7 @@ use super::support::Trusted;
 
 use nu_test_support::fs::Stub::FileWithContent;
 use nu_test_support::playground::Playground;
-use nu_test_support::{nu, nu_repl_code};
+use nu_test_support::{nu, nu_repl_code, nu_with_std};
 use pretty_assertions::assert_eq;
 use serial_test::serial;
 
@@ -215,3 +215,33 @@ fn env_var_case_insensitive() {
     assert!(actual.out.contains("111"));
     assert!(actual.out.contains("222"));
 }
+
+#[test]
+fn std_log_env_vars_are_not_overridden() {
+    let actual = nu_with_std!(
+        envs: vec![
+            ("NU_LOG_FORMAT".to_string(), "%MSG%".to_string()),
+            ("NU_LOG_DATE_FORMAT".to_string(), "%Y".to_string()),
+        ],
+        r#"
+            use std
+            print -e $env.NU_LOG_FORMAT
+            print -e $env.NU_LOG_DATE_FORMAT
+            std log error "err"
+        "#
+    );
+    assert_eq!(actual.err, "%MSG%\n%Y\nerr\n");
+}
+
+#[test]
+fn std_log_env_vars_have_defaults() {
+    let actual = nu_with_std!(
+        r#"
+            use std
+            print -e $env.NU_LOG_FORMAT
+            print -e $env.NU_LOG_DATE_FORMAT
+        "#
+    );
+    assert!(actual.err.contains("%MSG%"));
+    assert!(actual.err.contains("%Y-"));
+}