diff --git a/devel/llvm15/files/patch-llvm_tools_sancov_sancov.cpp b/devel/llvm15/files/patch-llvm_tools_sancov_sancov.cpp
new file mode 100644
index 000000000000..3d5271dc4f55
--- /dev/null
+++ b/devel/llvm15/files/patch-llvm_tools_sancov_sancov.cpp
@@ -0,0 +1,15 @@
+--- llvm/tools/sancov/sancov.cpp.orig	2023-01-12 07:12:30 UTC
++++ llvm/tools/sancov/sancov.cpp
+@@ -529,10 +529,10 @@ class Ignorelists { (private)
+       return std::unique_ptr<SpecialCaseList>();
+ 
+     if (!ClBlacklist.empty())
+-      return SpecialCaseList::createOrDie({{ClBlacklist}},
++      return SpecialCaseList::createOrDie({{ClBlacklist.getValue()}},
+                                           *vfs::getRealFileSystem());
+ 
+-    return SpecialCaseList::createOrDie({{ClIgnorelist}},
++    return SpecialCaseList::createOrDie({{ClIgnorelist.getValue()}},
+                                         *vfs::getRealFileSystem());
+   }
+   std::unique_ptr<SpecialCaseList> DefaultIgnorelist;