diff --git a/llvm.spec b/llvm.spec
index e9fe808..7927113 100644
--- a/llvm.spec
+++ b/llvm.spec
@@ -467,8 +467,11 @@ rm test/tools/llvm-readobj/ELF/dependent-libraries.test
 # non reproducible errors
 rm test/tools/dsymutil/X86/swift-interface.test
 
+# see rhbz#1988288
+sed -i -e "s/'ASAN_SYMBOLIZER_PATH', 'MSAN_SYMBOLIZER_PATH'/'ASAN_SYMBOLIZER_PATH', 'MSAN_SYMBOLIZER_PATH', 'DFLTCC'/" test/lit.cfg.py
+
 # FIXME: use %%cmake_build instead of %%__ninja
-LD_LIBRARY_PATH=%{buildroot}/%{pkg_libdir}  %{__ninja} check-all -C %{_vpath_builddir}
+DFLTCC=0 LD_LIBRARY_PATH=%{buildroot}/%{pkg_libdir}  %{__ninja} check-all -C %{_vpath_builddir}
 
 %ldconfig_scriptlets libs