diff --git a/logdoctor/modules/craplog/modules/formats.h b/logdoctor/modules/craplog/modules/formats.h
index 08bcef8d..520e5304 100644
--- a/logdoctor/modules/craplog/modules/formats.h
+++ b/logdoctor/modules/craplog/modules/formats.h
@@ -6,7 +6,7 @@
 
 #include <unordered_map>
 
-class LogsFormat;
+struct LogsFormat;
 
 
 //! FormatOps
diff --git a/logdoctor/modules/craplog/modules/workers/lister.h b/logdoctor/modules/craplog/modules/workers/lister.h
index e6cbf4e1..f8189c91 100644
--- a/logdoctor/modules/craplog/modules/workers/lister.h
+++ b/logdoctor/modules/craplog/modules/workers/lister.h
@@ -4,8 +4,8 @@
 
 #include <QObject>
 
-class LogsFormat;
-class LogFile;
+struct LogsFormat;
+struct LogFile;
 class HashOps;
 
 enum class WorkerDialog;
diff --git a/logdoctor/utilities/rtf.h b/logdoctor/utilities/rtf.h
index 95bdaa95..ae32bde2 100644
--- a/logdoctor/utilities/rtf.h
+++ b/logdoctor/utilities/rtf.h
@@ -6,8 +6,8 @@
 
 #include <string>
 
+struct LogsFormat;
 class TextBrowser;
-class LogsFormat;
 class QString;