diff --git a/test/libc.zig b/test/libc.zig
index 6f5590a543fe9966cd82cc3ed5241ae03f6566b6..26227911b54bf79f087abefc950de7c6adca6f78 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", true, .{});
     cases.addLibcTestCase("math/log2f.c", true, .{});
     cases.addLibcTestCase("math/log2l.c", true, .{});
-    cases.addLibcTestCase("math/logb.c", true, .{});
-    cases.addLibcTestCase("math/logbf.c", true, .{});
-    cases.addLibcTestCase("math/logbl.c", true, .{});
+    // cases.addLibcTestCase("math/logb.c", true, .{});
+    // cases.addLibcTestCase("math/logbf.c", true, .{});
+    // cases.addLibcTestCase("math/logbl.c", true, .{});
     cases.addLibcTestCase("math/logf.c", true, .{});
     cases.addLibcTestCase("math/logl.c", true, .{});
     cases.addLibcTestCase("math/lrint.c", true, .{});