diff --git a/paper/gtt.tex b/paper/gtt.tex
index 48d802acca74dafa41309cfc4395ebb818f10b9c..92c0b72343f28e2a55ba3cc8a38fa66e61dbcdc2 100644
--- a/paper/gtt.tex
+++ b/paper/gtt.tex
@@ -374,7 +374,7 @@ body of the function.
 %
 For instance, if the variable $x$ is guaranteed to only be
 instantiated with numbers, then the programmer is free to replace $0$
-with $x - x$ or vice-versa
+with $x - x$ or vice-versa.
 %
 However, if $x$ can be instantiated with a closure, then $x - x$ will
 raise a runtime type error while $0$ will succeed, violating the
@@ -9759,7 +9759,7 @@ structure~\cite{ahman+16fiberedeffects}.
 
 \newpage
 
-\paragraph{Acknowledgements}
+\paragraph{Acknowledgments}
 
 We thank Gabriel?, Sam TH?, Ron?, MSFP people? FSCD people? for helpful
 discussions about this work.  We thank the anonymous reviewers for