diff --git a/src/gui_gtk_x11.c b/src/gui_gtk_x11.c
index 1f8b2eb..3f0cf8c 100644
--- a/src/gui_gtk_x11.c
+++ b/src/gui_gtk_x11.c
@@ -4845,7 +4845,11 @@
 	{
 	    uc = (cjk_langs[i][0] == 'k') ? 0xAC00 : 0x4E00;
 	    is_cjk = (pango_coverage_get(coverage, uc) == PANGO_COVERAGE_EXACT);
+#if PANGO_VERSION_CHECK(1, 52, 0)
+	    g_object_unref(coverage);
+#else
 	    pango_coverage_unref(coverage);
+#endif
 	}
     }