diff --git a/include/gwin/checkbox.h b/include/gwin/checkbox.h
index 0289a50a..ba8f3b2f 100644
--- a/include/gwin/checkbox.h
+++ b/include/gwin/checkbox.h
@@ -36,8 +36,9 @@
 /*===========================================================================*/
 
 typedef struct GEventGWinCheckbox_t {
-	GEventType		type;				// The type of this event (GEVENT_GWIN_CHECKBOX)
-	GHandle			checkbox;			// The checkbox that has been depressed (actually triggered on release)
+	GEventType		type;			// The type of this event (GEVENT_GWIN_CHECKBOX)
+	GHandle			checkbox;		// The checkbox that has been depressed (actually triggered on release)
+	bool_t			state			// Is the checkbox currently checked or unchecked?
 } GEventGWinCheckbox;
 
 typedef enum GCheckboxShape_e {
diff --git a/src/gwin/checkbox.c b/src/gwin/checkbox.c
index a0d281c9..f12c0ee3 100644
--- a/src/gwin/checkbox.c
+++ b/src/gwin/checkbox.c
@@ -88,6 +88,7 @@ static void gwinCheckboxCallback(void *param, GEvent *pe) {
 			continue;
 		pbe->type = GEVENT_GWIN_CHECKBOX;
 		pbe->checkbox = gh;
+		pbe->state = gbw->state;
 		geventSendEvent(psl);
 	}