diff --git a/e2e/tasks/test_task_default b/e2e/tasks/test_task_default
index 7f8d7d36e6..bb84b37502 100644
--- a/e2e/tasks/test_task_default
+++ b/e2e/tasks/test_task_default
@@ -2,9 +2,13 @@
 
 assert "mise tasks add --file foo:bar:baz -- echo baz"
 assert "mise tasks add --file foo:bar -- echo bar"
+assert "mise tasks add --file foo:_default.sh -- echo foo"
 ls -lR .
 
-assert "mise tasks" "foo:bar
+assert "mise tasks" "foo
+foo:bar
 foo:bar:baz"
 assert "mise tasks run foo:bar:baz" "baz"
 assert "mise tasks run foo:bar" "bar"
+
+assert "mise tasks run foo" "foo"
diff --git a/src/task/mod.rs b/src/task/mod.rs
index 8f8d2915e2..e518e49ee8 100644
--- a/src/task/mod.rs
+++ b/src/task/mod.rs
@@ -1112,11 +1112,12 @@ fn name_from_path(prefix: impl AsRef<Path>, path: impl AsRef<Path>) -> Result<St
         .map(ffi::OsStr::to_string_lossy)
         .map(|s| s.replace(':', "_"))
         .join(":");
-    if let Some(name) = name.strip_suffix(":_default") {
-        Ok(name.to_string())
-    } else {
-        Ok(name)
+    if let Some((parent, last)) = name.rsplit_once(':')
+        && strip_extension(last) == "_default"
+    {
+        return Ok(parent.to_string());
     }
+    Ok(name)
 }
 
 /// Extract monorepo path from a task name
@@ -1634,6 +1635,11 @@ mod tests {
             (("/.mise/tasks", "/.mise/tasks/a/b/c"), "a:b:c"),
             (("/.mise/tasks", "/.mise/tasks/a:b"), "a_b"),
             (("/.mise/tasks", "/.mise/tasks/a:b/c"), "a_b:c"),
+            (("/.mise/tasks", "/.mise/tasks/a/_default"), "a"),
+            (("/.mise/tasks", "/.mise/tasks/a/_default.sh"), "a"),
+            (("/.mise/tasks", "/.mise/tasks/a/_default.js"), "a"),
+            (("/.mise/tasks", "/.mise/tasks/a/b/_default"), "a:b"),
+            (("/.mise/tasks", "/.mise/tasks/a/b/_default.sh"), "a:b"),
         ];
 
         for ((root, path), expected) in test_cases {