diff --git a/spec/std/colorize_spec.cr b/spec/std/colorize_spec.cr
index 8d30698b6964..99f85df56cb1 100644
--- a/spec/std/colorize_spec.cr
+++ b/spec/std/colorize_spec.cr
@@ -153,7 +153,7 @@ describe "colorize" do
     colorize("hello").italic.to_s.should eq("\e[3mhello\e[23m")
     colorize("hello").underline.to_s.should eq("\e[4mhello\e[24m")
     colorize("hello").blink.to_s.should eq("\e[5mhello\e[25m")
-    colorize("hello").blink_fast.to_s.should eq("\e[6mhello\e[26m")
+    colorize("hello").blink_fast.to_s.should eq("\e[6mhello\e[25m")
     colorize("hello").reverse.to_s.should eq("\e[7mhello\e[27m")
     colorize("hello").hidden.to_s.should eq("\e[8mhello\e[28m")
     colorize("hello").strikethrough.to_s.should eq("\e[9mhello\e[29m")
diff --git a/src/colorize.cr b/src/colorize.cr
index a28c98aaf474..f4ab80314c89 100644
--- a/src/colorize.cr
+++ b/src/colorize.cr
@@ -340,8 +340,7 @@ private def each_reset_code(mode : Colorize::Mode, &)
   yield "22" if mode.dim?
   yield "23" if mode.italic?
   yield "24" if mode.underline?
-  yield "25" if mode.blink?
-  yield "26" if mode.blink_fast?
+  yield "25" if mode.blink? || mode.blink_fast?
   yield "27" if mode.reverse?
   yield "28" if mode.hidden?
   yield "29" if mode.strikethrough?