diff --git a/src/test/java/com/google/devtools/build/lib/packages/SkylarkSemanticsConsistencyTest.java b/src/test/java/com/google/devtools/build/lib/packages/SkylarkSemanticsConsistencyTest.java
index 341eea1..72ece5b 100644
--- a/src/test/java/com/google/devtools/build/lib/packages/SkylarkSemanticsConsistencyTest.java
+++ b/src/test/java/com/google/devtools/build/lib/packages/SkylarkSemanticsConsistencyTest.java
@@ -161,6 +161,7 @@
         "--incompatible_remap_main_repo=" + rand.nextBoolean(),
         "--incompatible_remove_native_maven_jar=" + rand.nextBoolean(),
         "--incompatible_restrict_named_params=" + rand.nextBoolean(),
+        "--incompatible_run_shell_command_string=" + rand.nextBoolean(),
         "--incompatible_string_join_requires_strings=" + rand.nextBoolean(),
         "--incompatible_restrict_string_escapes=" + rand.nextBoolean(),
         "--internal_skylark_flag_test_canary=" + rand.nextBoolean());
@@ -212,6 +213,7 @@
         .incompatibleRemapMainRepo(rand.nextBoolean())
         .incompatibleRemoveNativeMavenJar(rand.nextBoolean())
         .incompatibleRestrictNamedParams(rand.nextBoolean())
+        .incompatibleRunShellCommandString(rand.nextBoolean())
         .incompatibleStringJoinRequiresStrings(rand.nextBoolean())
         .incompatibleRestrictStringEscapes(rand.nextBoolean())
         .internalSkylarkFlagTestCanary(rand.nextBoolean())
diff --git a/src/test/java/com/google/devtools/build/lib/skylark/SkylarkIntegrationTest.java b/src/test/java/com/google/devtools/build/lib/skylark/SkylarkIntegrationTest.java
index 5564531..6a7b329 100644
--- a/src/test/java/com/google/devtools/build/lib/skylark/SkylarkIntegrationTest.java
+++ b/src/test/java/com/google/devtools/build/lib/skylark/SkylarkIntegrationTest.java
@@ -2955,6 +2955,26 @@
     assertContainsEvent("exe not included in runfiles");
   }
 
+  @Test
+  public void testCommandStringList() throws Exception {
+    setSkylarkSemanticsOptions("--incompatible_run_shell_command_string");
+    scratch.file(
+        "test/skylark/test_rule.bzl",
+        "def _my_rule_impl(ctx):",
+        "  exe = ctx.actions.declare_file('exe')",
+        "  ctx.actions.run_shell(outputs=[exe], command=['touch', 'exe'])",
+        "  return []",
+        "my_rule = rule(implementation = _my_rule_impl)");
+    scratch.file(
+        "test/skylark/BUILD",
+        "load('//test/skylark:test_rule.bzl', 'my_rule')",
+        "my_rule(name = 'target')");
+
+    reporter.removeHandler(failFastHandler);
+    getConfiguredTarget("//test/skylark:target");
+    assertContainsEvent("'command' must be of type string");
+  }
+
   /**
    * Skylark integration test that forces inlining.
    */