diff --git a/src/video_box.cpp b/src/video_box.cpp
index 49fff80aa..e76937a00 100644
--- a/src/video_box.cpp
+++ b/src/video_box.cpp
@@ -46,6 +46,7 @@
 #include <wx/combobox.h>
 #include <wx/sizer.h>
 #include <wx/statline.h>
+#include <wx/string.h>
 #include <wx/textctrl.h>
 #include <wx/toolbar.h>
 
@@ -115,7 +116,7 @@ void VideoBox::UpdateTimeBoxes() {
 	int time = context->videoController->TimeAtFrame(frame, agi::vfr::EXACT);
 
 	// Set the text box for frame number and time
-	VideoPosition->SetValue(fmt_wx("%s - %d", agi::Time(time).GetAssFormatted(true), frame));
+	VideoPosition->SetValue(wxString::Format("%s - %d", agi::Time(time).GetAssFormatted(true), frame));
 	if (boost::binary_search(context->project->Keyframes(), frame)) {
 		// Set the background color to indicate this is a keyframe
 		VideoPosition->SetBackgroundColour(to_wx(OPT_GET("Colour/Subtitle Grid/Background/Selection")->GetColor()));