diff --git a/include/internal/catch_console_colour_impl.hpp b/include/internal/catch_console_colour_impl.hpp
index f776952b..e3cb9538 100644
--- a/include/internal/catch_console_colour_impl.hpp
+++ b/include/internal/catch_console_colour_impl.hpp
@@ -131,7 +131,7 @@ namespace {
                 case Colour::White:     return setColour( "[0m" );
                 case Colour::Red:       return setColour( "[0;31m" );
                 case Colour::Green:     return setColour( "[0;32m" );
-                case Colour::Blue:      return setColour( "[0:34m" );
+                case Colour::Blue:      return setColour( "[0;34m" );
                 case Colour::Cyan:      return setColour( "[0;36m" );
                 case Colour::Yellow:    return setColour( "[0;33m" );
                 case Colour::Grey:      return setColour( "[1;30m" );
diff --git a/single_include/catch.hpp b/single_include/catch.hpp
index 879fc5b1..239df820 100644
--- a/single_include/catch.hpp
+++ b/single_include/catch.hpp
@@ -7136,7 +7136,7 @@ namespace {
                 case Colour::White:     return setColour( "[0m" );
                 case Colour::Red:       return setColour( "[0;31m" );
                 case Colour::Green:     return setColour( "[0;32m" );
-                case Colour::Blue:      return setColour( "[0:34m" );
+                case Colour::Blue:      return setColour( "[0;34m" );
                 case Colour::Cyan:      return setColour( "[0;36m" );
                 case Colour::Yellow:    return setColour( "[0;33m" );
                 case Colour::Grey:      return setColour( "[1;30m" );