diff --git a/src/detection/coverart.rs b/src/detection/coverart.rs
index fc5cc39..e3d757b 100644
--- a/src/detection/coverart.rs
+++ b/src/detection/coverart.rs
@@ -19,12 +19,14 @@ pub fn file_type_from_data(data: &Vec<u8>) -> Result<String, std::io::Error> {
     }
 }
 
+
 pub mod constants {
     pub const PNG_TYPE: &str = "png";
     pub const JPEG_TYPE: &str = "jpeg";
     pub const JPG_TYPE: &str = "jpg";
 }
 
+
 #[cfg(test)]
 mod tests {
     #[test]
@@ -36,7 +38,7 @@ mod tests {
         match super::file_type_from_filepath(&filepath) {
             Ok(filetype) => {
                 assert_eq!(
-                    filetype, "png",
+                    filetype, super::constants::PNG_TYPE,
                     "The file type of the CoverArt should have been png"
                 );
             }
@@ -56,7 +58,7 @@ mod tests {
         match super::file_type_from_data(&data) {
             Ok(filetype) => {
                 assert_eq!(
-                    filetype, "png",
+                    filetype, super::constants::PNG_TYPE,
                     "The file type of the CoverArt should have been png"
                 );
             }
diff --git a/src/detection/mod.rs b/src/detection/mod.rs
index b1ecbb7..df4b487 100644
--- a/src/detection/mod.rs
+++ b/src/detection/mod.rs
@@ -2,8 +2,6 @@ pub mod coverart;
 pub mod song;
 
 pub struct FileType {
-    pub mime: String
-}
-
-pub enum FileTypeDef {
+    pub mime: String,
+    pub file_type: String,
 }
diff --git a/src/detection/song.rs b/src/detection/song.rs
index ed0099e..a6ca378 100644
--- a/src/detection/song.rs
+++ b/src/detection/song.rs
@@ -1,9 +1,15 @@
-
-
-pub fn file_type_from_filepath(filepath: &str) -> Result<String, std::io::Error> {
+pub fn file_type_from_filepath(filepath: &str) -> Result<crate::detection::FileType, std::io::Error> {
     match infer::get_from_path(filepath) {
         Ok(Some(kind)) => {
-            Ok(String::new())
+            let mime = kind.mime_type();
+            if mime == "audio/x-flac" {
+                Ok(crate::detection::FileType {
+                    mime: String::from(mime),
+                    file_type: String::from(constants::FLAC_TYPE)
+                })
+            } else {
+                Err(std::io::Error::other("Unsupported file type"))
+            }
         }
         Ok(None) => {
             Err(std::io::Error::other("File type not determined"))