diff --git a/evocheck.sh b/evocheck.sh
index 0bca172..3dd0066 100755
--- a/evocheck.sh
+++ b/evocheck.sh
@@ -797,8 +797,9 @@ if is_debian; then
                 continue
             fi
             reservedBlockCount=$(dumpe2fs -h "$part" 2>/dev/null | grep -e "Reserved block count:" | grep -Eo "[0-9]+")
-            percentage=$(python -c "print(int(round(float(${reservedBlockCount})/${blockCount}*100)))")
-            if [ "$percentage" -lt 5 ]; then
+            # Use bc to have a rounded percentage
+            percentage=$(echo "scale=0; ${reservedBlockCount} * 100 / ${blockCount}" | bc)
+            if [ "$percentage" -lt "5" ]; then
                 failed "IS_TUNE2FS_M5" "Partition ${part} has less than 5% reserved blocks!"
             fi
         done