diff --git a/Reconstruction_simplification_2/include/CGAL/console_color.h b/Reconstruction_simplification_2/include/CGAL/console_color.h
index 8b10ab8c566..0201b098242 100644
--- a/Reconstruction_simplification_2/include/CGAL/console_color.h
+++ b/Reconstruction_simplification_2/include/CGAL/console_color.h
@@ -14,7 +14,7 @@ inline std::ostream& blue(std::ostream &s)
     SetConsoleTextAttribute(hStdout,
     		FOREGROUND_BLUE|FOREGROUND_GREEN|FOREGROUND_INTENSITY);
 #else
-    s << "\e[0;34m";
+    s << "\x1b[0;34m";
 #endif
     return s;
 }
@@ -25,7 +25,7 @@ inline std::ostream& red(std::ostream &s)
     HANDLE hStdout = GetStdHandle(STD_OUTPUT_HANDLE); 
     SetConsoleTextAttribute(hStdout, FOREGROUND_RED|FOREGROUND_INTENSITY);
 #else
-    s << "\e[0;31m";
+    s << "\x1b[0;31m";
 #endif
     return s;
 }
@@ -36,7 +36,7 @@ inline std::ostream& green(std::ostream &s)
     HANDLE hStdout = GetStdHandle(STD_OUTPUT_HANDLE); 
     SetConsoleTextAttribute(hStdout, FOREGROUND_GREEN|FOREGROUND_INTENSITY);
 #else
-    s << "\e[0;32m";
+    s << "\x1b[0;32m";
 #endif
     return s;
 }
@@ -48,7 +48,7 @@ inline std::ostream& yellow(std::ostream &s)
     SetConsoleTextAttribute(hStdout,
     		FOREGROUND_GREEN|FOREGROUND_RED|FOREGROUND_INTENSITY);
 #else
-    s << "\e[0;33m";
+    s << "\x1b[0;33m";
 #endif
     return s;
 }
@@ -60,7 +60,7 @@ inline std::ostream& white(std::ostream &s)
     SetConsoleTextAttribute(hStdout,
     		FOREGROUND_RED|FOREGROUND_GREEN|FOREGROUND_BLUE);
 #else
-    s << "\e[0;37m";
+    s << "\x1b[0;37m";
 #endif
     return s;
 }