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-rw-r--r--src/lib/gamma-x-randr.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/src/lib/gamma-x-randr.c b/src/lib/gamma-x-randr.c
index 9e8a8a0..fb002fc 100644
--- a/src/lib/gamma-x-randr.c
+++ b/src/lib/gamma-x-randr.c
@@ -195,7 +195,7 @@ int libgamma_x_randr_site_initialise(libgamma_site_state_t* restrict this,
/* Connect to the display server. */
this->data = connection = xcb_connect(site, NULL);
- if (connection == NULL)
+ if (connection == NULL || xcb_connection_has_error(connection))
return LIBGAMMA_OPEN_SITE_FAILED;
/* Query the version of the X RandR extension protocol. */