diff --git a/gst-libs/gst/gl/gstgldisplay.c b/gst-libs/gst/gl/gstgldisplay.c
index d7f4a5913b..9fc42e4092 100644
--- a/gst-libs/gst/gl/gstgldisplay.c
+++ b/gst-libs/gst/gl/gstgldisplay.c
@@ -301,7 +301,7 @@ gst_gl_display_new (void)
     display = GST_GL_DISPLAY (gst_gl_display_wayland_new (NULL));
 #endif
 #if GST_GL_HAVE_WINDOW_VIV_FB
-  if (!display && (!user_choice || g_strstr_len (user_choice, 2, "viv-fb"))) {
+  if (!display && (!user_choice || g_strstr_len (user_choice, 6, "viv-fb"))) {
     const gchar *disp_idx_str = NULL;
     gint disp_idx = 0;
     disp_idx_str = g_getenv ("GST_GL_VIV_FB");
diff --git a/gst-libs/gst/gl/gstglwindow.c b/gst-libs/gst/gl/gstglwindow.c
index a282b4a24c..c2e8be07c0 100644
--- a/gst-libs/gst/gl/gstglwindow.c
+++ b/gst-libs/gst/gl/gstglwindow.c
@@ -275,7 +275,7 @@ gst_gl_window_new (GstGLDisplay * display)
     window = GST_GL_WINDOW (gst_gl_window_eagl_new (display));
 #endif
 #if GST_GL_HAVE_WINDOW_VIV_FB
-  if (!window && (!user_choice || g_strstr_len (user_choice, 2, "viv-fb")))
+  if (!window && (!user_choice || g_strstr_len (user_choice, 6, "viv-fb")))
     window = GST_GL_WINDOW (gst_gl_window_viv_fb_egl_new (display));
 #endif