diff --git a/src/font/shaper/harfbuzz.zig b/src/font/shaper/harfbuzz.zig
index a16f063e1..946611e79 100644
--- a/src/font/shaper/harfbuzz.zig
+++ b/src/font/shaper/harfbuzz.zig
@@ -2108,6 +2108,7 @@ fn testShaperWithFont(alloc: Allocator, font_req: TestFont) !TestShaper {
 }
 
 fn testShaperWithDiscoveredFont(alloc: Allocator, font_req: [:0]const u8) !TestShaper {
+    if (font.Discover == void) return error.SkipZigTest;
     var lib = try Library.init(alloc);
     errdefer lib.deinit();