diff --git a/readme.md b/readme.md
index 98e8349..26bc757 100644
--- a/readme.md
+++ b/readme.md
@@ -459,7 +459,7 @@ Example output:
 ---
 
 **NOTE: The p-values in the sample output above are not used for matching**—they aren't part of the BiGpairSEQ algorithm at all. 
-P-values (if enabled in the interactive menu options or by using the -pv flag in the command line) are calculated *after* 
+P-values (if enabled in the interactive menu options or by using the -pv flag on the command line) are calculated *after* 
 BiGpairSEQ matching is completed, for purposes of comparison with pairSEQ only, using the (corrected) formula from the 
 original pairSEQ paper. (Howie, et al. 2015) Calculation of p-values is off by default to reduce processing time.