diff --git a/devel_generate/src/Plugin/DevelGenerate/TermDevelGenerate.php b/devel_generate/src/Plugin/DevelGenerate/TermDevelGenerate.php
index 962f3ff5b5349eba6cee80cb09f1dd4f51ed33b1..44b300e64f7a5d14be611aa3fc853d6510b003ae 100644
--- a/devel_generate/src/Plugin/DevelGenerate/TermDevelGenerate.php
+++ b/devel_generate/src/Plugin/DevelGenerate/TermDevelGenerate.php
@@ -374,7 +374,7 @@ class TermDevelGenerate extends DevelGenerateBase implements ContainerFactoryPlu
       $info['terms']++;
       @$info[$vid][$depth]['total']++;
       // List only the first 10 new terms at each vocab/level.
-      if (@count($info[$vid][$depth]['terms']) < 10) {
+      if (!isset($info[$vid][$depth]['terms']) || count($info[$vid][$depth]['terms']) < 10) {
         $info[$vid][$depth]['terms'][] = $term->label();
       }