diff --git a/crates/nu-cmd-lang/src/core_commands/def_env.rs b/crates/nu-cmd-lang/src/core_commands/def_env.rs
index 10c2763897..4d967d7b6d 100644
--- a/crates/nu-cmd-lang/src/core_commands/def_env.rs
+++ b/crates/nu-cmd-lang/src/core_commands/def_env.rs
@@ -37,11 +37,21 @@ impl Command for DefEnv {
 
     fn run(
         &self,
-        _engine_state: &EngineState,
+        engine_state: &EngineState,
         _stack: &mut Stack,
-        _call: &Call,
+        call: &Call,
         _input: PipelineData,
     ) -> Result<PipelineData, ShellError> {
+        nu_protocol::report_error_new(
+            engine_state,
+            &ShellError::GenericError(
+                "Deprecated command".into(),
+                "`def-env` is deprecated and will be removed in 0.88.".into(),
+                Some(call.head),
+                Some("Use `def --env` instead".into()),
+                vec![],
+            ),
+        );
         Ok(PipelineData::empty())
     }
 
diff --git a/crates/nu-cmd-lang/src/core_commands/export_def_env.rs b/crates/nu-cmd-lang/src/core_commands/export_def_env.rs
index 54c6668f3c..ce2aed5ca8 100644
--- a/crates/nu-cmd-lang/src/core_commands/export_def_env.rs
+++ b/crates/nu-cmd-lang/src/core_commands/export_def_env.rs
@@ -62,11 +62,21 @@ export def-env cd_with_fallback [arg = ""] {
 
     fn run(
         &self,
-        _engine_state: &EngineState,
+        engine_state: &EngineState,
         _stack: &mut Stack,
-        _call: &Call,
+        call: &Call,
         _input: PipelineData,
     ) -> Result<PipelineData, ShellError> {
+        nu_protocol::report_error_new(
+            engine_state,
+            &ShellError::GenericError(
+                "Deprecated command".into(),
+                "`export def-env` is deprecated and will be removed in 0.88.".into(),
+                Some(call.head),
+                Some("Use `export def --env` instead".into()),
+                vec![],
+            ),
+        );
         Ok(PipelineData::empty())
     }