diff --git a/test/ondemand/scripts/read-expression-dump-file.sh b/test/ondemand/scripts/read-expression-dump-file.sh
index d3006d3af..3ecfb0332 100644
--- a/test/ondemand/scripts/read-expression-dump-file.sh
+++ b/test/ondemand/scripts/read-expression-dump-file.sh
@@ -4,4 +4,11 @@ if [[ "$1" == "--help"  || "$1" == "" ]]; then
 	exit
 fi
 
-xxd -c 8 -g 0 -b $1 | grep -oE ' [01]+ ' | grep -oE '[01]+' | sed 's/0/ /g'
\ No newline at end of file
+if ! command -v ggrep &> /dev/null
+then
+	ggrep=grep
+else
+    ggrep=ggrep
+fi
+
+xxd -c 16 -g 0 -b $1 | $ggrep -oP '(?<=[01]{64})[01]+' | grep -oE '[01]+' | sed 's/0/ /g'