diff --git a/README.md b/README.md
index 4b7df34..8550fff 100644
--- a/README.md
+++ b/README.md
@@ -42,7 +42,7 @@ NOAA Ferret running under Windows is not currently supported.  The NOAA Ferret [
 
 **ShellScripts:**  The shell scripts automate the calculation of P<sub>50</sub> depth for different physiological parameters using the NOAA Ferret software.   
 
-**TestFiles:**  Contains test files to verify that the results were generated by the code correctly.  
+**TestFiles:**  Contains test files to verify that the results were generated by the code are correct.  
 
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 #### Environmental data