diff --git a/docs/sources/reference/builder.rst b/docs/sources/reference/builder.rst
index 1c8331e98f..6462512da0 100644
--- a/docs/sources/reference/builder.rst
+++ b/docs/sources/reference/builder.rst
@@ -49,7 +49,7 @@ to be created - so ``RUN cd /tmp`` will not have any effect on the next
 instructions.
 
 Whenever possible, Docker will re-use the intermediate images, 
-accelerating ``docker build`` significantly (indicated by ``Using cache``:
+accelerating ``docker build`` significantly (indicated by ``Using cache``):
 
 .. code-block:: bash