diff --git a/explorer/fuzzing/fuzzer_corpus/512e48e65ff569c91b7cbebbb6160b07de5b2ab1.textproto b/explorer/fuzzing/fuzzer_corpus/00f0094e829126778228c3fdefec8654ceab30e4.textproto
similarity index 76%
rename from explorer/fuzzing/fuzzer_corpus/512e48e65ff569c91b7cbebbb6160b07de5b2ab1.textproto
rename to explorer/fuzzing/fuzzer_corpus/00f0094e829126778228c3fdefec8654ceab30e4.textproto
index 3ec1b067821e..f7f082f6d270 100644
--- a/explorer/fuzzing/fuzzer_corpus/512e48e65ff569c91b7cbebbb6160b07de5b2ab1.textproto
+++ b/explorer/fuzzing/fuzzer_corpus/00f0094e829126778228c3fdefec8654ceab30e4.textproto
@@ -7,7 +7,9 @@ compilation_unit {
             expression {
               function_type {
                 parameter {
-                  primitive_operator {
+                  fields {
+                    primitive_operator {
+                    }
                   }
                 }
               }