diff --git a/README.md b/README.md
index 6afaf9b..fd51e33 100644
--- a/README.md
+++ b/README.md
@@ -48,6 +48,7 @@ To change to LimeSurvey configuration, you can mount a Volume into the Container
 | DB_TYPE         | Database Type to use. mysql or pgsql      |
 | DB_HOST         | Database server hostname                  |
 | DB_PORT         | Database server port                      |
+| DB_SOCK         | Database unix socket instead of host/port |
 | DB_NAME         | Database name                             |
 | DB_TABLE_PREFIX | Database table prefix                     |
 | DB_USERNAME     | Database user                             |
diff --git a/apache/entrypoint.sh b/apache/entrypoint.sh
index 9f2162f..7467dce 100755
--- a/apache/entrypoint.sh
+++ b/apache/entrypoint.sh
@@ -46,7 +46,14 @@ else
     fi
 
     # Set Database config
-    sed -i "s#\('connectionString' => \).*,\$#\\1'${DB_TYPE}:host=${DB_HOST};port=${DB_PORT};dbname=${DB_NAME};',#g" application/config/config.php
+    if [ ! -z "$DB_SOCK" ]; then
+        echo 'Info: Using unix socket'
+        sed -i "s#\('connectionString' => \).*,\$#\\1'${DB_TYPE}:unix_socket=${DB_SOCK};dbname=${DB_NAME};',#g" application/config/config.php
+    else
+        echo 'Info: Using TCP connection'
+        sed -i "s#\('connectionString' => \).*,\$#\\1'${DB_TYPE}:host=${DB_HOST};port=${DB_PORT};dbname=${DB_NAME};',#g" application/config/config.php
+    fi
+
     sed -i "s#\('username' => \).*,\$#\\1'${DB_USERNAME}',#g" application/config/config.php
     sed -i "s#\('password' => \).*,\$#\\1'${DB_PASSWORD}',#g" application/config/config.php
     sed -i "s#\('charset' => \).*,\$#\\1'${DB_CHARSET}',#g" application/config/config.php
diff --git a/fpm-alpine/entrypoint.sh b/fpm-alpine/entrypoint.sh
index 3a712f0..508e19a 100755
--- a/fpm-alpine/entrypoint.sh
+++ b/fpm-alpine/entrypoint.sh
@@ -46,7 +46,14 @@ else
     fi
 
     # Set Database config
-    sed -i "s#\('connectionString' => \).*,\$#\\1'${DB_TYPE}:host=${DB_HOST};port=${DB_PORT};dbname=${DB_NAME};',#g" application/config/config.php
+    if [ ! -z "$DB_SOCK" ]; then
+        echo 'Info: Using unix socket'
+        sed -i "s#\('connectionString' => \).*,\$#\\1'${DB_TYPE}:unix_socket=${DB_SOCK};dbname=${DB_NAME};',#g" application/config/config.php
+    else
+        echo 'Info: Using TCP connection'
+        sed -i "s#\('connectionString' => \).*,\$#\\1'${DB_TYPE}:host=${DB_HOST};port=${DB_PORT};dbname=${DB_NAME};',#g" application/config/config.php
+    fi
+
     sed -i "s#\('username' => \).*,\$#\\1'${DB_USERNAME}',#g" application/config/config.php
     sed -i "s#\('password' => \).*,\$#\\1'${DB_PASSWORD}',#g" application/config/config.php
     sed -i "s#\('charset' => \).*,\$#\\1'${DB_CHARSET}',#g" application/config/config.php
diff --git a/fpm/entrypoint.sh b/fpm/entrypoint.sh
index 9f2162f..7467dce 100755
--- a/fpm/entrypoint.sh
+++ b/fpm/entrypoint.sh
@@ -46,7 +46,14 @@ else
     fi
 
     # Set Database config
-    sed -i "s#\('connectionString' => \).*,\$#\\1'${DB_TYPE}:host=${DB_HOST};port=${DB_PORT};dbname=${DB_NAME};',#g" application/config/config.php
+    if [ ! -z "$DB_SOCK" ]; then
+        echo 'Info: Using unix socket'
+        sed -i "s#\('connectionString' => \).*,\$#\\1'${DB_TYPE}:unix_socket=${DB_SOCK};dbname=${DB_NAME};',#g" application/config/config.php
+    else
+        echo 'Info: Using TCP connection'
+        sed -i "s#\('connectionString' => \).*,\$#\\1'${DB_TYPE}:host=${DB_HOST};port=${DB_PORT};dbname=${DB_NAME};',#g" application/config/config.php
+    fi
+
     sed -i "s#\('username' => \).*,\$#\\1'${DB_USERNAME}',#g" application/config/config.php
     sed -i "s#\('password' => \).*,\$#\\1'${DB_PASSWORD}',#g" application/config/config.php
     sed -i "s#\('charset' => \).*,\$#\\1'${DB_CHARSET}',#g" application/config/config.php