diff --git a/test/libc.zig b/test/libc.zig
index 416b1100f45d83826a05983253c0d41d76b41053..8116e17aa25b192c7be369f5bda29a6afbea0e3f 100644
--- a/test/libc.zig
+++ b/test/libc.zig
@@ -121,7 +121,7 @@ pub fn addCases(cases: *tests.LibcContext) void {
     cases.addLibcTestCase("regression/regex-negated-range.c", true, .{});
     cases.addLibcTestCase("regression/regexec-nosub.c", true, .{});
     cases.addLibcTestCase("regression/rewind-clear-error.c", false, .{});
-    cases.addLibcTestCase("regression/rlimit-open-files.c", false, .{});
+    // cases.addLibcTestCase("regression/rlimit-open-files.c", false, .{}); - fails when machine is under heavy load
     cases.addLibcTestCase("regression/scanf-bytes-consumed.c", true, .{});
     cases.addLibcTestCase("regression/scanf-match-literal-eof.c", true, .{});
     cases.addLibcTestCase("regression/scanf-nullbyte-char.c", true, .{});