diff --git a/nexus/pdc.cc b/nexus/pdc.cc
index 98a44276..2622bfe1 100644
--- a/nexus/pdc.cc
+++ b/nexus/pdc.cc
@@ -170,7 +170,7 @@ struct PDCParser
 
         while (true) {
             char c = peek();
-            if (!in_quotes && !in_braces && !escaped && std::isblank(c)) {
+            if (!in_quotes && !in_braces && !escaped && (std::isblank(c) || c == ']')) {
                 break;
             }
             get();