diff --git a/alfresco-transformer-base/src/main/resources/application.yaml b/alfresco-transformer-base/src/main/resources/application.yaml
index 98c2ce54..7e22ec7a 100644
--- a/alfresco-transformer-base/src/main/resources/application.yaml
+++ b/alfresco-transformer-base/src/main/resources/application.yaml
@@ -18,7 +18,7 @@ activemq:
   url: ${ACTIVEMQ_URL:false}
 
 server:
-  port: ${SERVER.PORT:8090}
+  port: ${SERVER_PORT:8090}
   error:
     include-message: ALWAYS
 
diff --git a/docs/external-engine-configuration.md b/docs/external-engine-configuration.md
index 4c17d923..404fad0d 100644
--- a/docs/external-engine-configuration.md
+++ b/docs/external-engine-configuration.md
@@ -7,7 +7,7 @@ The following externalized T-engines properties are available:
 ## Tika
 | Property | Description | Default value |
 |----------|-------------|---------------|
-| SERVER.PORT | T-Engine Port. | 8090 |
+| SERVER_PORT | T-Engine Port. | 8090 |
 | HOSTNAME | T-Engine Name. | t-engine |
 | ACTIVEMQ_URL | ActiveMQ URL. | nio://localhost:61616 |
 | ACTIVEMQ_USER | ActiveMQ User. | admin |
@@ -19,7 +19,7 @@ The following externalized T-engines properties are available:
 ## Pdf-renderer
 | Property | Description | Default value |
 |----------|-------------|---------------|
-| SERVER.PORT | T-Engine Port | 8090 |
+| SERVER_PORT | T-Engine Port | 8090 |
 | HOSTNAME | T-Engine Name. | t-engine |
 | ACTIVEMQ_URL | ActiveMQ URL. | nio://localhost:61616 |
 | ACTIVEMQ_USER | ActiveMQ User. | admin |
@@ -31,7 +31,7 @@ The following externalized T-engines properties are available:
 ## Misc
 | Property | Description | Default value |
 |----------|-------------|---------------|
-| SERVER.PORT | T-Engine Port | 8090 |
+| SERVER_PORT | T-Engine Port | 8090 |
 | HOSTNAME | T-Engine Name. | t-engine |
 | ACTIVEMQ_URL | ActiveMQ URL. | nio://localhost:61616 |
 | ACTIVEMQ_USER | ActiveMQ User. | admin |
@@ -42,7 +42,7 @@ The following externalized T-engines properties are available:
 ## Libreoffice
 | Property | Description | Default value |
 |----------|-------------|---------------|
-| SERVER.PORT | T-Engine Port | 8090 |
+| SERVER_PORT | T-Engine Port | 8090 |
 | HOSTNAME | T-Engine Name. | t-engine |
 | ACTIVEMQ_URL | ActiveMQ URL. | nio://localhost:61616 |
 | ACTIVEMQ_USER | ActiveMQ User. | admin |
@@ -59,7 +59,7 @@ The following externalized T-engines properties are available:
 ## Imagemagick
 | Property | Description | Default value |
 |----------|-------------|---------------|
-| SERVER.PORT | T-Engine Port | 8090 |
+| SERVER_PORT | T-Engine Port | 8090 |
 | HOSTNAME | T-Engine Name. | t-engine |
 | ACTIVEMQ_URL | ActiveMQ URL. | nio://localhost:61616 |
 | ACTIVEMQ_USER | ActiveMQ User. | admin |
@@ -75,7 +75,7 @@ The following externalized T-engines properties are available:
 ## Core-aio
 | Property | Description | Default value |
 |----------|-------------|---------------|
-| SERVER.PORT | T-Engine Port | 8090 |
+| SERVER_PORT | T-Engine Port | 8090 |
 | HOSTNAME | T-Engine Name. | t-engine |
 | ACTIVEMQ_URL | ActiveMQ URL. | nio://localhost:61616 |
 | ACTIVEMQ_USER | ActiveMQ User. | admin |
diff --git a/pom.xml b/pom.xml
index 791a4b9a..38f514cf 100644
--- a/pom.xml
+++ b/pom.xml
@@ -355,7 +355,7 @@
                             <LIBREOFFICE_TEMPLATE_PROFILE_DIR></LIBREOFFICE_TEMPLATE_PROFILE_DIR>
                             <LIBREOFFICE_IS_ENABLED>true</LIBREOFFICE_IS_ENABLED>
                             <PDF_RENDERER_EXE>/usr/bin/alfresco-pdf-renderer</PDF_RENDERER_EXE>
-                            <SERVER.PORT>8090</SERVER.PORT>
+                            <SERVER_PORT>8090</SERVER_PORT>
                             <buildDirectory>${project.build.directory}</buildDirectory>
                         </systemPropertyVariables>
                     </configuration>