diff --git a/src/plugins/debugger/debuggeragents.h b/src/plugins/debugger/debuggeragents.h
index b48eb703af6..c6d4b768c74 100644
--- a/src/plugins/debugger/debuggeragents.h
+++ b/src/plugins/debugger/debuggeragents.h
@@ -45,7 +45,7 @@ namespace Debugger {
 namespace Internal {
 
 class DebuggerManager;
-class DisassemblerViewAgentPrivate;
+struct DisassemblerViewAgentPrivate;
 
 class MemoryViewAgent : public QObject
 {