diff --git a/gui/erroritem.cpp b/gui/erroritem.cpp
index 92055678d..46ab536a9 100644
--- a/gui/erroritem.cpp
+++ b/gui/erroritem.cpp
@@ -18,6 +18,11 @@
 
 #include "erroritem.h"
 
+ErrorItem::ErrorItem()
+    : severity(Severity::none)
+{
+}
+
 ErrorItem::ErrorItem(const ErrorItem &item)
 {
     file = item.file;
diff --git a/gui/erroritem.h b/gui/erroritem.h
index cc0ddc913..cb3db71f9 100644
--- a/gui/erroritem.h
+++ b/gui/erroritem.h
@@ -97,7 +97,7 @@ public:
 class ErrorItem
 {
 public:
-    ErrorItem() { }
+    ErrorItem();
     ErrorItem(const ErrorItem &item);
     ErrorItem(const ErrorLine &line);
     ~ErrorItem() { }