diff --git a/fa-compression/src/main.rs b/fa-compression/src/main.rs
index 24a01eb..6ba22bf 100644
--- a/fa-compression/src/main.rs
+++ b/fa-compression/src/main.rs
@@ -14,13 +14,13 @@ pub fn main() {
         let line = line.unwrap();
         let splitted_line = line.split("\t").collect::<Vec<&str>>();
 
-        let ec = splitted_line[7];
+        let ec: String = splitted_line[7].split(';').map(|s| format!("EC:{}", s)).collect::<Vec<String>>().join(";");
         let go = splitted_line[8];
-        let interpro = splitted_line[9];
+        let interpro = splitted_line[9].split(';').map(|s| format!("IPR:{}", s)).collect::<Vec<String>>().join(";");
 
         let mut string = String::new();
         if !ec.is_empty() {
-            string.push_str(ec);
+            string.push_str(&ec);
             string.push(';');
         }
         if !go.is_empty() {
@@ -28,10 +28,12 @@ pub fn main() {
             string.push(';');
         }
         if !interpro.is_empty() {
-            string.push_str(interpro);
+            string.push_str(&interpro);
             string.push(';');
         }
-        string.pop();
+        if !string.is_empty() {
+            string.pop();
+        }
 
         writer.write_all(format!("{}\t{}\t{}\t", splitted_line[1], splitted_line[3], splitted_line[6]).as_bytes()).unwrap();
         writer.write_all(encode(&string).as_slice()).unwrap();