diff --git a/external-sop/src/test/java/sop/testsuite/external/ExternalSOPInstanceFactory.java b/external-sop/src/test/java/sop/testsuite/external/ExternalSOPInstanceFactory.java
index 3f46fc1..f84f7e6 100644
--- a/external-sop/src/test/java/sop/testsuite/external/ExternalSOPInstanceFactory.java
+++ b/external-sop/src/test/java/sop/testsuite/external/ExternalSOPInstanceFactory.java
@@ -20,7 +20,7 @@ import java.util.Properties;
 /**
  * This implementation of {@link SOPInstanceFactory} reads the JSON file at
  * <pre>external-sop/src/main/resources/sop/testsuite/external/config.json</pre>
- * to determine configured external test backends
+ * to determine configured external test backends.
  */
 public class ExternalSOPInstanceFactory extends SOPInstanceFactory {