Index: Ringtoets/Integration/src/Ringtoets.Integration.Plugin/RingtoetsPlugin.cs
===================================================================
diff -u -rdee00ab2cf59f8d4ed966e25b429b7f131d5ccdf -r2cdf3437a976a64fa3f8a0534e5e692f9159f145
--- Ringtoets/Integration/src/Ringtoets.Integration.Plugin/RingtoetsPlugin.cs	(.../RingtoetsPlugin.cs)	(revision dee00ab2cf59f8d4ed966e25b429b7f131d5ccdf)
+++ Ringtoets/Integration/src/Ringtoets.Integration.Plugin/RingtoetsPlugin.cs	(.../RingtoetsPlugin.cs)	(revision 2cdf3437a976a64fa3f8a0534e5e692f9159f145)
@@ -696,7 +696,7 @@
             {
                 Name = RingtoetsFormsResources.AssemblyResults_DisplayName,
                 CreateFileExporter = (context, filePath) => new AssemblyExporter(context.WrappedData, filePath),
-                IsEnabled = context => true,
+                IsEnabled = context => context.WrappedData.ReferenceLine != null,
                 FileFilterGenerator = new FileFilterGenerator("gml",
                                                               "gml file")
             };
Index: Ringtoets/Integration/test/Ringtoets.Integration.Plugin.Test/ExportInfos/AssemblyResultsContextExportInfoTest.cs
===================================================================
diff -u -rdee00ab2cf59f8d4ed966e25b429b7f131d5ccdf -r2cdf3437a976a64fa3f8a0534e5e692f9159f145
--- Ringtoets/Integration/test/Ringtoets.Integration.Plugin.Test/ExportInfos/AssemblyResultsContextExportInfoTest.cs	(.../AssemblyResultsContextExportInfoTest.cs)	(revision dee00ab2cf59f8d4ed966e25b429b7f131d5ccdf)
+++ Ringtoets/Integration/test/Ringtoets.Integration.Plugin.Test/ExportInfos/AssemblyResultsContextExportInfoTest.cs	(.../AssemblyResultsContextExportInfoTest.cs)	(revision 2cdf3437a976a64fa3f8a0534e5e692f9159f145)
@@ -95,17 +95,44 @@
         }
 
         [Test]
-        public void IsEnabled_Always_ReturnsTrue()
+        public void IsEnabled_AssessmentSectionWithoutReferenceLine_ReturnsFalse()
         {
             // Setup
+            var random = new Random(21);
+            var assessmentSection = new AssessmentSection(random.NextEnumValue<AssessmentSectionComposition>());
+            var context = new AssemblyResultsContext(assessmentSection);
+
             using (var plugin = new RingtoetsPlugin())
             {
                 ExportInfo info = GetExportInfo(plugin);
 
                 // Call
-                bool isEnabled = info.IsEnabled(null);
+                bool isEnabled = info.IsEnabled(context);
 
                 // Assert
+                Assert.IsFalse(isEnabled);
+            }
+        }
+
+        [Test]
+        public void IsEnabled_AssessmentSectionWithReferenceLine_ReturnsTrue()
+        {
+            // Setup
+            var random = new Random(21);
+            var assessmentSection = new AssessmentSection(random.NextEnumValue<AssessmentSectionComposition>())
+            {
+                ReferenceLine = new ReferenceLine()
+            };
+            var context = new AssemblyResultsContext(assessmentSection);
+
+            using (var plugin = new RingtoetsPlugin())
+            {
+                ExportInfo info = GetExportInfo(plugin);
+
+                // Call
+                bool isEnabled = info.IsEnabled(context);
+
+                // Assert
                 Assert.IsTrue(isEnabled);
             }
         }