diff --git a/gaboshlib/g_num_is_between.sh b/gaboshlib/g_num_is_between.sh
index 8c531c3..042a19f 100644
--- a/gaboshlib/g_num_is_between.sh
+++ b/gaboshlib/g_num_is_between.sh
@@ -29,7 +29,7 @@ function g_num_is_between {
   g_num_valid_number "$f_num" "$f_between1" "$f_between2" || return 1
 
   # Check which is the low (from) and the high (to) number
-  if [ $(echo "${f_between1} < ${f_between2}" | bc -l) -ne 0 ]
+  if [ $(g_calc "${f_between1} < ${f_between2}") -ne 0 ]
   then
     local f_from=${f_between1}
     local f_to=${f_between2}