diff --git a/dive.h b/dive.h
index d466643d2..8657ffe13 100644
--- a/dive.h
+++ b/dive.h
@@ -646,7 +646,11 @@ extern void add_event(struct divecomputer *dc, int time, int type, int flags, in
 extern void add_cylinder_description(cylinder_type_t *);
 extern void add_weightsystem_description(weightsystem_t *);
 extern void remember_event(const char *eventname);
-extern int evn_foreach(void (*callback)(const char *, int *, void *), void *data);
+
+#if WE_DONT_USE_THIS /* this is a missing feature in Qt - selecting which events to display */
+extern int evn_foreach(void (*callback)(const char *, bool *, void *), void *data);
+#endif /* WE_DONT_USE_THIS */
+
 extern void clear_events(void);
 
 extern void set_dc_nickname(struct dive *dive);
diff --git a/profile.c b/profile.c
index 4f451a377..3e6820443 100644
--- a/profile.c
+++ b/profile.c
@@ -99,7 +99,8 @@ struct ev_select *ev_namelist;
 int evn_allocated;
 int evn_used;
 
-int evn_foreach(void (*callback)(const char *, int *, void *), void *data)
+#if WE_DONT_USE_THIS /* we need to implement event filters in Qt */
+int evn_foreach(void (*callback)(const char *, bool *, void *), void *data)
 {
 	int i;
 
@@ -109,6 +110,7 @@ int evn_foreach(void (*callback)(const char *, int *, void *), void *data)
 	}
 	return i;
 }
+#endif /* WE_DONT_USE_THIS */
 
 void clear_events(void)
 {