diff a/src/hotspot/share/classfile/moduleEntry.cpp b/src/hotspot/share/classfile/moduleEntry.cpp
--- a/src/hotspot/share/classfile/moduleEntry.cpp
+++ b/src/hotspot/share/classfile/moduleEntry.cpp
@@ -309,11 +309,11 @@
   return entry;
 }
 
 void ModuleEntry::delete_unnamed_module() {
   // Do not need unlink_entry() since the unnamed module is not in the hashtable
-  FREE_C_HEAP_ARRAY(char, this);
+  FREE_C_HEAP_OBJ(this);
 }
 
 ModuleEntryTable::ModuleEntryTable(int table_size)
   : Hashtable<Symbol*, mtModule>(table_size, sizeof(ModuleEntry))
 {