diff --git a/libavdevice/x11grab.c b/libavdevice/x11grab.c
index 8a18830be0..be883da005 100644
--- a/libavdevice/x11grab.c
+++ b/libavdevice/x11grab.c
@@ -657,8 +657,8 @@ static int x11grab_read_close(AVFormatContext *s1)
 #define OFFSET(x) offsetof(X11GrabContext, x)
 #define DEC AV_OPT_FLAG_DECODING_PARAM
 static const AVOption options[] = {
-    { "grab_x", "Initial x coordinate.", OFFSET(x_off), AV_OPT_TYPE_INT, { .i64 = 0 }, 0, INT_MAX, D },
-    { "grab_y", "Initial y coordinate.", OFFSET(y_off), AV_OPT_TYPE_INT, { .i64 = 0 }, 0, INT_MAX, D },
+    { "grab_x", "Initial x coordinate.", OFFSET(x_off), AV_OPT_TYPE_INT, { .i64 = 0 }, 0, INT_MAX, DEC },
+    { "grab_y", "Initial y coordinate.", OFFSET(y_off), AV_OPT_TYPE_INT, { .i64 = 0 }, 0, INT_MAX, DEC },
     { "draw_mouse", "draw the mouse pointer", OFFSET(draw_mouse), AV_OPT_TYPE_INT, {.i64 = 1}, 0, 1, DEC },
 
     { "follow_mouse", "move the grabbing region when the mouse pointer reaches within specified amount of pixels to the edge of region",