diff --git a/src/chapter_3/lab_1/main.cpp b/src/chapter_3/lab_1/main.cpp
index 7ea24ce..8c7993b 100644
--- a/src/chapter_3/lab_1/main.cpp
+++ b/src/chapter_3/lab_1/main.cpp
@@ -7,6 +7,7 @@ class Rational {
 private:
   int numerator;
   int denominator;
+  int gcd(int, int) const;
 
 public:
   Rational(int numerator = 0, int denominator = 1);
@@ -16,9 +17,6 @@ public:
   Rational divide(const Rational &) const;
   void simplify();
   void display() const;
-
-private:
-  int gcd(int, int) const;
 };
 
 // Implement Rational class member functions here