diff --git a/src/main/java/org/scijava/annotations/AbstractIndexWriter.java b/src/main/java/org/scijava/annotations/AbstractIndexWriter.java
index 9266d6d26..52104745b 100644
--- a/src/main/java/org/scijava/annotations/AbstractIndexWriter.java
+++ b/src/main/java/org/scijava/annotations/AbstractIndexWriter.java
@@ -45,6 +45,8 @@
 import java.util.Map.Entry;
 import java.util.TreeMap;
 
+import javax.lang.model.element.AnnotationValue;
+
 /**
  * Writes annotations as JSON-formatted files.
  * <p>
@@ -170,6 +172,9 @@ protected Object adapt(final Object o) {
 		if (o instanceof Annotation) {
 			return adapt((Annotation) o);
 		}
+		else if (o instanceof AnnotationValue) {
+			return adapt(((AnnotationValue) o).getValue());
+		}
 		else if (o instanceof Enum) {
 			return adapt((Enum<?>) o);
 		}