diff --git a/fortran90.html.markdown b/fortran90.html.markdown
index 434f1c02..3730f8b0 100644
--- a/fortran90.html.markdown
+++ b/fortran90.html.markdown
@@ -438,7 +438,7 @@ end module fruity
 
 
 ! ISO Standard Fortran 2008 introduced the DO CONCURRENT construct to allow you
-! to express loop-level parallelis
+! to express loop-level parallelism
 
 integer :: i
 real :: array(100)