diff --git a/crates/editor/src/editor.rs b/crates/editor/src/editor.rs
index cc02740900770e4bee42ad49361f65b7dda98568..2ff8b585c3f228f70246947bed8c2e6da221bd37 100644
--- a/crates/editor/src/editor.rs
+++ b/crates/editor/src/editor.rs
@@ -2523,12 +2523,15 @@ impl Editor {
         }
 
         if let Some(singleton_buffer) = self.buffer.read(cx).as_singleton() {
-            if let Some(extension) = singleton_buffer
-                .read(cx)
-                .file()
-                .and_then(|file| file.path().extension())
-            {
-                key_context.set("extension", extension.to_string());
+            if let Some(extension) = singleton_buffer.read(cx).file().and_then(|file| {
+                Some(
+                    file.full_path(cx)
+                        .extension()?
+                        .to_string_lossy()
+                        .into_owned(),
+                )
+            }) {
+                key_context.set("extension", extension);
             }
         } else {
             key_context.add("multibuffer");