diff --git a/ui/ui.cpp b/ui/ui.cpp
index 06385b6..386c357 100644
--- a/ui/ui.cpp
+++ b/ui/ui.cpp
@@ -41,6 +41,7 @@ limitations under the License.
 #include "attachprocess.h"
 #include "progresstask.h"
 #include "debuggerinfowidget.h"
+#include "freeversion.h"
 
 #ifdef WIN32
 	#include "ttdrecord.h"