diff --git a/doc/user/intro/intro.txt b/doc/user/intro/intro.txt
index 0a1d62ca3..8e49b43e1 100755
--- a/doc/user/intro/intro.txt
+++ b/doc/user/intro/intro.txt
@@ -51,7 +51,7 @@ important to note that by ``professional'' we do not necessarily imply
 ``commercial'' or even ``industrial''.  We do, however, wish to suggest an
 attitude or frame of mind in how this work is approached.
 
-Professionalism implies _to do work with sincerity, and to be subject to any
+Professionalism implies _doing work with sincerity and being subject to any
 kind of wider goal, demand, or purpose._ When it comes to editing film, this
 wider goal, demand, or purpose might be artistry, a narration or meaning to convey,
 a political message or commercial revenue -- it might be something to reveal to