diff --git a/demos/tools/touch_calibration_grabber/main.c b/demos/tools/touch_calibration_grabber/main.c
index 44ef8329..3ce791ee 100644
--- a/demos/tools/touch_calibration_grabber/main.c
+++ b/demos/tools/touch_calibration_grabber/main.c
@@ -38,6 +38,10 @@ static coord_t					bHeight;
 static GHandle					ghc;
 static coord_t					swidth, sheight;
 
+#if !GWIN_CONSOLE_USE_FLOAT
+	#error "You need to enable float support for the console widget. (GWIN_CONSOLE_USE_FLOAT)"
+#endif
+
 int main(void) {
 	GMouse*					m;