diff --git a/indra/llwindow/llwindowsdl.cpp b/indra/llwindow/llwindowsdl.cpp
--- a/indra/llwindow/llwindowsdl.cpp
+++ b/indra/llwindow/llwindowsdl.cpp
@@ -2646,8 +2646,9 @@
 	if (sortpat)
 	{
 		// Sort the list of system fonts from most-to-least-desirable.
+		FcResult result;
 		fs = FcFontSort(NULL, sortpat, elide_unicode_coverage,
-				NULL, NULL);
+				NULL, &result);
 		FcPatternDestroy(sortpat);
 	}