diff --git a/internal/rosa/llvm.go b/internal/rosa/llvm.go
index 2751410c..1c15de26 100644
--- a/internal/rosa/llvm.go
+++ b/internal/rosa/llvm.go
@@ -251,6 +251,7 @@ func (t Toolchain) newLLVM() (pkg.Artifact, string) {
 			// symbols: clock_gettime, mallopt
 			{"COMPILER_RT_INCLUDE_TESTS", "OFF"},
 
+			{"LLVM_BUILD_TESTS", "ON"},
 			{"LLVM_LIT_ARGS", litArgs(true, skipChecks...)},
 		}...)
 	}