diff --git a/src/bin/example.rs b/src/bin/example.rs
index 6486f63..23161f0 100644
--- a/src/bin/example.rs
+++ b/src/bin/example.rs
@@ -270,6 +270,11 @@ impl retro::wrapper::Handler for MyEmulator {
         Some(std::env::temp_dir())
     }
 
+    fn get_variable(&mut self, key: &str) -> Option<String> {
+        eprintln!("ignored: get_variable({})", key);
+        None
+    }
+
     fn set_system_av_info(&mut self, av_info: SystemAvInfo) -> bool {
         self.set_geometry(av_info.geometry.clone());
         self.av_info = av_info;
diff --git a/src/retro/wrapper.rs b/src/retro/wrapper.rs
index b077285..923fb82 100644
--- a/src/retro/wrapper.rs
+++ b/src/retro/wrapper.rs
@@ -50,8 +50,8 @@ pub trait Handler: Unpin + 'static {
     fn set_pixel_format(&mut self, format: PixelFormat) -> bool { false }
     fn set_input_descriptors(&mut self, input_descriptors: &[InputDescriptor]) -> bool { false }
     fn set_hw_render(&mut self, hw_render_callback: HwRenderCallback) -> bool { false }
-    fn get_variable(&mut self) -> Option<EnvVariable> { None }
-    fn set_variables(&mut self, variables: &[EnvVariable]) -> bool { false }
+    fn get_variable(&mut self, key: &str) -> Option<String> { None }
+    fn set_variables(&mut self, variables: &[Variable]) -> bool { false }
     fn get_variable_update(&mut self) -> Option<bool> { None }
     fn set_support_no_game(&mut self, supports_no_game: bool) -> bool { false }
     fn get_libretro_path(&mut self) -> Option<PathBuf> { None }
@@ -123,12 +123,12 @@ impl StaticCallbacks {
             // TODO EnvCmd::SetDiskControlInterface => {},
             // TODO EnvCmd::SetHwRender => {},
             EnvCmd::GetVariable => {
-                // TODO: actually implement
-                let v = Self::from_void::<Variable>(data)?;
-                eprintln!(
-                    "Unsupported env cmd: GetVariable ({})",
-                    unsafe { CStr::from_ptr(v.key) }.to_string_lossy());
-                false
+                let mut var = Self::from_void::<Variable>(data)?;
+                let value = handler
+                    .get_variable(unsafe { CStr::from_ptr(var.key) }.to_str().ok()?)?;
+                // leaks memory.
+                var.value = CString::new(value).ok()?.into_raw();
+                true
             },
             // TODO EnvCmd::SetVariables => {},
             EnvCmd::GetVariableUpdate => Self::clone_into_void(data, &handler.get_variable_update()?)?,