diff --git a/crates/warpui_core/src/platform/file_picker.rs b/crates/warpui_core/src/platform/file_picker.rs
index 57c00f99..9a202a9c 100644
--- a/crates/warpui_core/src/platform/file_picker.rs
+++ b/crates/warpui_core/src/platform/file_picker.rs
@@ -28,8 +28,8 @@ impl FileType {
     pub fn extensions(&self) -> &[&str] {
         match self {
             FileType::Image => &["png", "jpg", "jpeg"],
-            FileType::Yaml => &["yaml"],
-            FileType::Markdown => &["md"],
+            FileType::Yaml => &["yaml", "yml"],
+            FileType::Markdown => &["md", "markdown"],
         }
     }
 
@@ -146,3 +146,7 @@ impl SaveFilePickerConfiguration {
         self
     }
 }
+
+#[cfg(test)]
+#[path = "file_picker_tests.rs"]
+mod tests;
diff --git a/crates/warpui_core/src/platform/file_picker_tests.rs b/crates/warpui_core/src/platform/file_picker_tests.rs
new file mode 100644
index 00000000..6f0bc3f7
--- /dev/null
+++ b/crates/warpui_core/src/platform/file_picker_tests.rs
@@ -0,0 +1,11 @@
+use super::*;
+
+#[test]
+fn yaml_file_type_accepts_both_yaml_and_yml() {
+    assert_eq!(FileType::Yaml.extensions(), &["yaml", "yml"]);
+}
+
+#[test]
+fn markdown_file_type_accepts_md_and_markdown() {
+    assert_eq!(FileType::Markdown.extensions(), &["md", "markdown"]);
+}