diff --git a/validation-test/BuildSystem/install_all.test b/validation-test/BuildSystem/install_all.test
index e8888d25beaf9..63d0ca62f3f9a 100644
--- a/validation-test/BuildSystem/install_all.test
+++ b/validation-test/BuildSystem/install_all.test
@@ -2,6 +2,8 @@
 # RUN: mkdir -p %t
 # RUN: SWIFT_BUILD_ROOT=%t %swift_src_root/utils/build-script --dry-run --install-all --cmake %cmake 2>&1 | %FileCheck %s
 
+# REQUIRES: standalone_test
+
 # CHECK: --- Installing cmark ---
 # CHECK: --- Installing llvm ---
 # CHECK: --- Installing swift ---
diff --git a/validation-test/BuildSystem/skip_cmark_swift_llvm.test b/validation-test/BuildSystem/skip_cmark_swift_llvm.test
index 093aef4d755c8..223410c03ab0a 100644
--- a/validation-test/BuildSystem/skip_cmark_swift_llvm.test
+++ b/validation-test/BuildSystem/skip_cmark_swift_llvm.test
@@ -1,3 +1,5 @@
+# REQUIRES: standalone_test
+
 # RUN: %empty-directory(%t)
 # RUN: mkdir -p %t
 # RUN: SWIFT_BUILD_ROOT=%t %swift_src_root/utils/build-script --dry-run --install-all --cmake %cmake --skip-build-cmark 2>&1 | %FileCheck --check-prefix=SKIP-CMARK-CHECK %s