diff --git a/src/freedombone-installer b/src/freedombone-installer
index 822f560e9660c1bf3919269f1024fef9a6a17e6a..f7e6d5c3845a127b099c1e9b36cc98758edce831 100755
--- a/src/freedombone-installer
+++ b/src/freedombone-installer
@@ -824,11 +824,11 @@ function update_progress_bar {
     if [ $progress_percent -gt 100 ]; then
         progress_percent=100
     fi
-    sed -i "s|<div class=\"w3-container.*|<div class=\"w3-container w3-blue w3-round-xlarge\" style=\"width:$progress_percent%\">$progress_percent%</div>|g" "$installing_page"
+    sed -i "s|<div class=\"w3-container.*|<div class=\"w3-container w3-blue w3-round-xlarge\" style=\"width:${progress_percent}%\">${progress_percent}%</div>|g" "$installing_page"
     if ! grep -q 'w3-container w3-blue' "$webadmin_install_dir/index.html"; then
         cp "$webadmin_install_dir/setup_installing.html" "$webadmin_install_dir/index.html"
     fi
-    sed -i "s|<div class=\"w3-container.*|<div class=\"w3-container w3-blue w3-round-xlarge\" style=\"width:$progress_percent%\">$progress_percent%</div>|g" "$webadmin_install_dir/index.html"
+    sed -i "s|<div class=\"w3-container.*|<div class=\"w3-container w3-blue w3-round-xlarge\" style=\"width:${progress_percent}%\">${progress_percent}%</div>|g" "$webadmin_install_dir/index.html"
 }
 
 function initiate_automatic_backup {
@@ -875,7 +875,7 @@ function update_backup_progress_bar {
     if [ $progress_percent -gt 100 ]; then
         progress_percent=100
     fi
-    sed -i "s|<div class=\"w3-container.*|<div class=\"w3-container w3-blue w3-round-xlarge\" style=\"width:$progress_percent%\">$progress_percent%</div>|g" "$progress_page"
+    sed -i "s|<div class=\"w3-container.*|<div class=\"w3-container w3-blue w3-round-xlarge\" style=\"width:${progress_percent}%\">${progress_percent}%</div>|g" "$progress_page"
 }
 
 function update_restore_progress_bar {
@@ -904,7 +904,7 @@ function update_restore_progress_bar {
     if [ $progress_percent -gt 100 ]; then
         progress_percent=100
     fi
-    sed -i "s|<div class=\"w3-container.*|<div class=\"w3-container w3-blue w3-round-xlarge\" style=\"width:$progress_percent%\">$progress_percent%</div>|g" "$progress_page"
+    sed -i "s|<div class=\"w3-container.*|<div class=\"w3-container w3-blue w3-round-xlarge\" style=\"width:${progress_percent}%\">${progress_percent}%</div>|g" "$progress_page"
 }
 
 function update_format_progress_bar {
@@ -933,7 +933,7 @@ function update_format_progress_bar {
     if [ $progress_percent -gt 100 ]; then
         progress_percent=100
     fi
-    sed -i "s|<div class=\"w3-container.*|<div class=\"w3-container w3-blue w3-round-xlarge\" style=\"width:$progress_percent%\">$progress_percent%</div>|g" "$progress_page"
+    sed -i "s|<div class=\"w3-container.*|<div class=\"w3-container w3-blue w3-round-xlarge\" style=\"width:${progress_percent}%\">${progress_percent}%</div>|g" "$progress_page"
 }
 
 function backup_and_restore {
@@ -1367,7 +1367,7 @@ function update_system_monitor {
                 sed -i "s|<div name=\"diskspace\" class=\"w3-container.*|<div name=\"diskspace\" class=\"w3-container w3-blue w3-round-xlarge\" style=\"width:$disk_use_percent\">$disk_use_percent</div>|g" "$webadmin_install_dir/system_monitor.html"
             fi
 
-            sed -i "s|<div name=\"memory\" class=\"w3-container.*|<div name=\"memory\" class=\"w3-container w3-blue w3-round-xlarge\" style=\"width:$used_memory_percent\">$used_memory_percent</div>|g" "$webadmin_install_dir/system_monitor.html"
+            sed -i "s|<div name=\"memory\" class=\"w3-container.*|<div name=\"memory\" class=\"w3-container w3-blue w3-round-xlarge\" style=\"width:${used_memory_percent}%\">${used_memory_percent}%</div>|g" "$webadmin_install_dir/system_monitor.html"
 
             chown www-data:www-data "$webadmin_install_dir/system_monitor.html"
         fi
diff --git a/src/freedombone-utils-webadmin b/src/freedombone-utils-webadmin
index 30f88d7e010a89b1832e93ef17960fcb0b33bbde..b64a533f9a5c28e3d57d202589aa6a77c8664ca3 100755
--- a/src/freedombone-utils-webadmin
+++ b/src/freedombone-utils-webadmin
@@ -714,7 +714,7 @@ function webadmin_update_system_monitor {
             sed -i "s|<div name=\"diskspace\" class=\"w3-container.*|<div name=\"diskspace\" class=\"w3-container w3-blue w3-round-xlarge\" style=\"width:$disk_use_percent\">$disk_use_percent</div>|g" "$webadmin_install_dir/system_monitor.html"
         fi
 
-        sed -i "s|<div name=\"memory\" class=\"w3-container.*|<div name=\"memory\" class=\"w3-container w3-blue w3-round-xlarge\" style=\"width:$used_memory_percent\">$used_memory_percent</div>|g" "$webadmin_install_dir/system_monitor.html"
+        sed -i "s|<div name=\"memory\" class=\"w3-container.*|<div name=\"memory\" class=\"w3-container w3-blue w3-round-xlarge\" style=\"width:${used_memory_percent}%\">${used_memory_percent}%</div>|g" "$webadmin_install_dir/system_monitor.html"
 
         chown www-data:www-data "$webadmin_install_dir/system_monitor.html"
     fi