diff --git a/pass1.cpp b/pass1.cpp
index 329be00..2124afa 100644
--- a/pass1.cpp
+++ b/pass1.cpp
@@ -1,4 +1,7 @@
 #include <bits/stdc++.h>
+#include<iostream>
+#include<string>
+#include<math.h>
 
 #include "tables.cpp"
 #include "infix.cpp"
@@ -383,4 +386,4 @@ int pass1(string asmfile){
 			write_comment_int(i);
 		}	
 	}
-}
\ No newline at end of file
+}