diff --git a/ExFAT/buidexfat.sh b/ExFAT/buidexfat.sh
index 53d0e0ca..b4104e1f 100644
--- a/ExFAT/buidexfat.sh
+++ b/ExFAT/buidexfat.sh
@@ -6,7 +6,7 @@
 #
 #
 
-if uname -a | egrep -q 'x86_64|amd64'; then
+if uname -a | grep -e -q 'x86_64|amd64'; then
     opt=
 else
     opt=-lrt