diff --git a/include/internal/catch_console_colour_impl.hpp b/include/internal/catch_console_colour_impl.hpp
index 2c4b36c3..728f8e97 100644
--- a/include/internal/catch_console_colour_impl.hpp
+++ b/include/internal/catch_console_colour_impl.hpp
@@ -118,7 +118,7 @@ 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 391c7ab4..21ccfe02 100644
--- a/single_include/catch.hpp
+++ b/single_include/catch.hpp
@@ -6408,7 +6408,7 @@ 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" );