diff --git a/src/haiku_support.cc b/src/haiku_support.cc
index 5f9fe7e234f..9fb98f70814 100644
--- a/src/haiku_support.cc
+++ b/src/haiku_support.cc
@@ -664,8 +664,8 @@ public:
   {
     struct haiku_resize_event rq;
     rq.window = this;
-    rq.px_heightf = newHeight;
-    rq.px_widthf = newWidth;
+    rq.px_heightf = newHeight + 1.0f;
+    rq.px_widthf = newWidth + 1.0f;
 
     haiku_write (FRAME_RESIZED, &rq);
     BDirectWindow::FrameResized (newWidth, newHeight);
diff --git a/src/haikuterm.c b/src/haikuterm.c
index be2b6c2491f..3e5b6046f6d 100644
--- a/src/haikuterm.c
+++ b/src/haikuterm.c
@@ -2626,8 +2626,8 @@ haiku_read_socket (struct terminal *terminal, struct input_event *hold_quit)
 	    if (!f)
 	      continue;
 
-	    int width = (int) b->px_widthf;
-	    int height = (int) b->px_heightf;
+	    int width = lrint (b->px_widthf);
+	    int height = lrint (b->px_heightf);
 
 	    BView_draw_lock (FRAME_HAIKU_VIEW (f));
 	    BView_resize_to (FRAME_HAIKU_VIEW (f), width, height);