diff --git a/scripts/af_or_calcs.R b/scripts/af_or_calcs.R
index daecadf..5f93d26 100755
--- a/scripts/af_or_calcs.R
+++ b/scripts/af_or_calcs.R
@@ -1,4 +1,5 @@
-usr/bin/env Rscript                                                  
+#!/usr/bin/Rscript  
+#!/usr/bin/env Rscript                                                  
 
 #########################################################
 # TASK: To calculate Allele Frequency and