diff --git a/src/main/java/com/google/devtools/build/lib/analysis/config/CoreOptions.java b/src/main/java/com/google/devtools/build/lib/analysis/config/CoreOptions.java
index 3e30b3f3131d06..e243f8323aea9b 100644
--- a/src/main/java/com/google/devtools/build/lib/analysis/config/CoreOptions.java
+++ b/src/main/java/com/google/devtools/build/lib/analysis/config/CoreOptions.java
@@ -342,7 +342,7 @@ public String getTypeDescription() {
       documentationCategory = OptionDocumentationCategory.OUTPUT_PARAMETERS,
       effectTags = {OptionEffectTag.ACTION_COMMAND_LINES},
       help =
-          "Specifies the set of environment variables available to actions. "
+          "Specifies the set of environment variables available to actions with target configuration. "
               + "Variables can be either specified by name, in which case the value will be "
               + "taken from the invocation environment, or by the name=value pair which sets "
               + "the value independent of the invocation environment. This option can be used "
@@ -350,6 +350,22 @@ public String getTypeDescription() {
               + "for different variables accumulate.")
   public List<Map.Entry<String, String>> actionEnvironment;
 
+  @Option(
+          name = "host_action_env",
+          converter = Converters.OptionalAssignmentConverter.class,
+          allowMultiple = true,
+          defaultValue = "null",
+          documentationCategory = OptionDocumentationCategory.OUTPUT_PARAMETERS,
+          effectTags = {OptionEffectTag.ACTION_COMMAND_LINES},
+          help =
+                  "Specifies the set of environment variables available to actions with host or execution "
+                          + "configurations. Variables can be either specified by name, in which case the value "
+                          + "will be taken from the invocation environment, or by the name=value pair which sets "
+                          + "the value independent of the invocation environment. This option can be used "
+                          + "multiple times; for options given for the same variable, the latest wins, options "
+                          + "for different variables accumulate.")
+  public List<Map.Entry<String, String>> hostActionEnvironment;
+
   @Option(
       name = "repo_env",
       converter = Converters.OptionalAssignmentConverter.class,
@@ -957,6 +973,9 @@ public FragmentOptions getHost() {
     host.hostCpu = hostCpu;
     host.hostCompilationMode = hostCompilationMode;
 
+    // Pass host action environment variables
+    host.actionEnvironment = hostActionEnvironment;
+
     return host;
   }