diff --git a/libcxx/test/libcxx/selftest/remote-substitutions.sh.cpp b/libcxx/test/libcxx/selftest/remote-substitutions.sh.cpp
--- a/libcxx/test/libcxx/selftest/remote-substitutions.sh.cpp
+++ b/libcxx/test/libcxx/selftest/remote-substitutions.sh.cpp
@@ -15,6 +15,7 @@
 // We also check that the path of test-executables is replaced whether they
 // appear first in the command-line or not.
 
+// UNSUPPORTED: executor-has-no-bash
 // RUN: %{cxx} %s %{flags} %{compile_flags} %{link_flags} -o %t.exe
 // RUN: %{exec} %t.exe 0
 // RUN: %{exec} bash -c '! %t.exe 1'