diff --git a/test/libc.zig b/test/libc.zig
index b23ac2e30938e74f25d44bafb85baaea733139ca..f0bce79b009b73ed0d9af7c4a1f681ea77a5a573 100644
--- a/test/libc.zig
+++ b/test/libc.zig
@@ -258,9 +258,9 @@ pub fn addCases(cases: *tests.LibcContext) void {
     cases.addLibcTestCase("math/log2.c", .{});
     cases.addLibcTestCase("math/log2f.c", .{});
     cases.addLibcTestCase("math/log2l.c", .{});
-    cases.addLibcTestCase("math/logb.c", .{});
-    cases.addLibcTestCase("math/logbf.c", .{});
-    cases.addLibcTestCase("math/logbl.c", .{});
+    // cases.addLibcTestCase("math/logb.c", .{});
+    // cases.addLibcTestCase("math/logbf.c", .{});
+    // cases.addLibcTestCase("math/logbl.c", .{});
     cases.addLibcTestCase("math/logf.c", .{});
     cases.addLibcTestCase("math/logl.c", .{});
     cases.addLibcTestCase("math/lrint.c", .{});