diff --git a/devel/llvm13/files/patch-llvm_tools_sancov_sancov.cpp b/devel/llvm13/files/patch-llvm_tools_sancov_sancov.cpp
new file mode 100644
index 000000000000..12e1cae28c3b
--- /dev/null
+++ b/devel/llvm13/files/patch-llvm_tools_sancov_sancov.cpp
@@ -0,0 +1,11 @@
+--- llvm/tools/sancov/sancov.cpp.orig	2021-06-28 16:23:38 UTC
++++ llvm/tools/sancov/sancov.cpp
+@@ -509,7 +509,7 @@ class Blacklists { (private)
+     if (ClBlacklist.empty())
+       return std::unique_ptr<SpecialCaseList>();
+ 
+-    return SpecialCaseList::createOrDie({{ClBlacklist}},
++    return SpecialCaseList::createOrDie({{ClBlacklist.getValue()}},
+                                         *vfs::getRealFileSystem());
+   }
+   std::unique_ptr<SpecialCaseList> DefaultBlacklist;