diff --git a/avocado-preprocessing.sh b/avocado-preprocessing.sh
index a8b2722..7add3cf 100755
--- a/avocado-preprocessing.sh
+++ b/avocado-preprocessing.sh
@@ -16,9 +16,9 @@ head -n -1 avocado-updated-2020.csv | shuf > avocado-updated-2020-shuf.csv
 
 head -n "$1" avocado-updated-2020-shuf.csv > avocado-2020.csv
 declare -i truncated_size=$(wc -l avocado-2020.csv | awk '{print $1}')
-let test_size= $((0,2*$truncated_size))
-let dev_size=$((2*0,2*$truncated_size))
-let train_size=$((2*0,2*$truncated_size+1))
+let test_size= $((0.2*$truncated_size))
+let dev_size=$((2*0.2*$truncated_size))
+let train_size=$((2*0.2*$truncated_size+1))
 
 # podzial na train/dev/test 6/2/2
 head -n $test_size avocado-2020.csv > avocado-updated-2020-test.csv