diff --git a/main.cpp b/main.cpp
index db351ef..c6147b3 100644
--- a/main.cpp
+++ b/main.cpp
@@ -1,3 +1,4 @@
+#include <iostream>
 using namespace std;
 
 int main()
@@ -13,7 +14,7 @@ int main()
     cout<<"Enter another whole number: \n";
     cin>>num2;
 
-    if( num1 = num2 )
+    if( num1 == num2 )
     {
       cout<<"Numbers should be different!\n";
       repeat = true;