diff --git a/server/CHANGELOG.md b/server/CHANGELOG.md
index 8909a9f..98e7b12 100644
--- a/server/CHANGELOG.md
+++ b/server/CHANGELOG.md
@@ -13,6 +13,7 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 ### Fixed
 
 * shell syntax error when ${btrfs_bin} variable is empty
+* read_variable + read_numerical_variable: keep the last found value only
 
 ### Security
 
diff --git a/server/lib/includes b/server/lib/includes
index 3892a2b..91321a3 100755
--- a/server/lib/includes
+++ b/server/lib/includes
@@ -445,7 +445,7 @@ read_variable() {
 
     pattern="^\s*${var_name}=.+"
 
-    grep --extended-regexp --only-matching "${pattern}" "${file}" | cut -d= -f2
+    grep --extended-regexp --only-matching "${pattern}" "${file}" | tail -1 | cut -d= -f2
 }
 
 read_numerical_variable() {
@@ -454,5 +454,5 @@ read_numerical_variable() {
 
     pattern="^\s*${var_name}=-?[0-9]+"
 
-    grep --extended-regexp --only-matching "${pattern}" "${file}" | cut -d= -f2
+    grep --extended-regexp --only-matching "${pattern}" "${file}" | tail -1 | cut -d= -f2
 }