diff --git a/rtgui/clipboard.h b/rtgui/clipboard.h
index 1faf0b4d3..0a1c8e2fa 100644
--- a/rtgui/clipboard.h
+++ b/rtgui/clipboard.h
@@ -24,7 +24,7 @@
 #include "../rtengine/diagonalcurvetypes.h"
 #include "../rtengine/flatcurvetypes.h"
 
-class ParamsEdited;
+struct ParamsEdited;
 
 namespace rtengine
 {
diff --git a/rtgui/paramsedited.h b/rtgui/paramsedited.h
index ec83e82cd..86bffe48d 100644
--- a/rtgui/paramsedited.h
+++ b/rtgui/paramsedited.h
@@ -28,7 +28,7 @@ namespace procparams
 
 class ProcParams;
 
-struct PartialProfile;
+class PartialProfile;
 
 }
 
diff --git a/rtgui/pparamschangelistener.h b/rtgui/pparamschangelistener.h
index 449ebfca5..56ac5f605 100644
--- a/rtgui/pparamschangelistener.h
+++ b/rtgui/pparamschangelistener.h
@@ -20,7 +20,7 @@
 
 #include <glibmm/ustring.h>
 
-class ParamsEdited;
+struct ParamsEdited;
 
 namespace rtengine
 {
diff --git a/rtgui/profilepanel.h b/rtgui/profilepanel.h
index 73d3a1949..b3c968682 100644
--- a/rtgui/profilepanel.h
+++ b/rtgui/profilepanel.h
@@ -42,7 +42,7 @@ namespace procparams
 
 class ProcParams;
 
-struct PartialProfile;
+class PartialProfile;
 
 }