diff --git a/src/main/kotlin/nl/avisi/structurizr/site/generatr/StructurizrUtilities.kt b/src/main/kotlin/nl/avisi/structurizr/site/generatr/StructurizrUtilities.kt
index 67043ced..c880f463 100644
--- a/src/main/kotlin/nl/avisi/structurizr/site/generatr/StructurizrUtilities.kt
+++ b/src/main/kotlin/nl/avisi/structurizr/site/generatr/StructurizrUtilities.kt
@@ -11,6 +11,9 @@ val Model.includedSoftwareSystems: List<SoftwareSystem>
 val SoftwareSystem.includedSoftwareSystem
     get() = this.location != Location.External
 
+val SoftwareSystem.includedProperties
+    get() = this.properties.filterNot { (name, _) -> name == "structurizr.dsl.identifier" }
+
 fun SoftwareSystem.hasDecisions() = documentation.decisions.isNotEmpty()
 
 fun SoftwareSystem.hasDocumentationSections() = documentation.sections.size >= 2
diff --git a/src/main/kotlin/nl/avisi/structurizr/site/generatr/site/model/SoftwareSystemHomePageViewModel.kt b/src/main/kotlin/nl/avisi/structurizr/site/generatr/site/model/SoftwareSystemHomePageViewModel.kt
index e8ad170e..54b286d1 100644
--- a/src/main/kotlin/nl/avisi/structurizr/site/generatr/site/model/SoftwareSystemHomePageViewModel.kt
+++ b/src/main/kotlin/nl/avisi/structurizr/site/generatr/site/model/SoftwareSystemHomePageViewModel.kt
@@ -1,12 +1,13 @@
 package nl.avisi.structurizr.site.generatr.site.model
 
 import com.structurizr.model.SoftwareSystem
+import nl.avisi.structurizr.site.generatr.includedProperties
 import nl.avisi.structurizr.site.generatr.site.GeneratorContext
 
 class SoftwareSystemHomePageViewModel(generatorContext: GeneratorContext, softwareSystem: SoftwareSystem) :
     SoftwareSystemPageViewModel(generatorContext, softwareSystem, Tab.HOME) {
-    val hasProperties = softwareSystem.properties.any()
-    val propertiesTable = createPropertiesTableViewModel(softwareSystem.properties)
+    val hasProperties = softwareSystem.includedProperties.any()
+    val propertiesTable = createPropertiesTableViewModel(softwareSystem.includedProperties)
     val content = markdownToHtml(this, softwareSystem.info(), generatorContext.svgFactory)
 
     private fun SoftwareSystem.info() = documentation.sections
diff --git a/src/test/kotlin/nl/avisi/structurizr/site/generatr/site/model/SoftwareSystemHomePageViewModelTest.kt b/src/test/kotlin/nl/avisi/structurizr/site/generatr/site/model/SoftwareSystemHomePageViewModelTest.kt
index 9812b6d8..d1d4f4e2 100644
--- a/src/test/kotlin/nl/avisi/structurizr/site/generatr/site/model/SoftwareSystemHomePageViewModelTest.kt
+++ b/src/test/kotlin/nl/avisi/structurizr/site/generatr/site/model/SoftwareSystemHomePageViewModelTest.kt
@@ -84,4 +84,22 @@ class SoftwareSystemHomePageViewModelTest : ViewModelTest() {
                     .isEqualTo(createPropertiesTableViewModel(softwareSystem.properties))
             }
     }
+
+    @Test
+    fun `internal properties present`() {
+        val generatorContext = generatorContext()
+        val softwareSystem: SoftwareSystem = generatorContext.workspace.model.addSoftwareSystem("Software system")
+            .apply {
+                description = "It's a system."
+                addProperty("structurizr.dsl.identifier", "id")
+            }
+        val viewModel = SoftwareSystemHomePageViewModel(generatorContext, softwareSystem)
+
+        assertThat(viewModel)
+            .all {
+                prop(SoftwareSystemHomePageViewModel::hasProperties).isEqualTo(false)
+                prop(SoftwareSystemHomePageViewModel::propertiesTable)
+                    .isEqualTo(createPropertiesTableViewModel(mapOf()))
+            }
+    }
 }