diff --git a/repos/libports/recipes/pkg/test-libc_fork/runtime b/repos/libports/recipes/pkg/test-libc_fork/runtime
index daaac5abc5..57914546ea 100644
--- a/repos/libports/recipes/pkg/test-libc_fork/runtime
+++ b/repos/libports/recipes/pkg/test-libc_fork/runtime
@@ -28,6 +28,7 @@
 			<resource name="RAM" quantum="1G"/>
 			<config>
 				<arg value="name_of_executeable"/>
+				<env key="WIZARD" value="gandalf"/>
 				<libc stdin="/null" stdout="/log" stderr="/log">
 					<fd id="3" path="/seek_test" readable="yes" seek="5"/>
 				</libc>
diff --git a/repos/libports/src/lib/libc/kernel.cc b/repos/libports/src/lib/libc/kernel.cc
index ac208b223e..50fa93bac1 100644
--- a/repos/libports/src/lib/libc/kernel.cc
+++ b/repos/libports/src/lib/libc/kernel.cc
@@ -19,6 +19,9 @@
 Libc::Kernel * Libc::Kernel::_kernel_ptr;
 
 
+extern char **environ;
+
+
 /**
  * Blockade for main context
  */
@@ -346,6 +349,9 @@ void Libc::Kernel::_clone_state_from_parent()
 	_cloned_heap_ranges.for_each([&] (Cloned_malloc_heap_range &heap_range) {
 		heap_range.import_content(*_clone_connection); });
 
+	/* value of global environ pointer (the env vars are already on the heap) */
+	_clone_connection->memory_content(&environ, sizeof(environ));
+
 	/* fetch user contex of the parent's application */
 	_clone_connection->memory_content(&_user_context, sizeof(_user_context));
 	_clone_connection->memory_content(&_main_monitor_job, sizeof(_main_monitor_job));
diff --git a/repos/libports/src/test/fork/test.cc b/repos/libports/src/test/fork/test.cc
index 6f4ec4f282..b1ef7398ff 100644
--- a/repos/libports/src/test/fork/test.cc
+++ b/repos/libports/src/test/fork/test.cc
@@ -38,6 +38,12 @@ int main(int, char **argv)
 
 	printf("pid %d: fork returned %d\n", getpid(), fork_ret);
 
+	/* check the consistency of known environment variable in both processes */
+	if (!getenv("WIZARD") || strcmp(getenv("WIZARD"), "gandalf") != 0) {
+		printf("Error: inheritance of environment variable failed\n");
+		return -1;
+	}
+
 	/* child */
 	if (fork_ret == 0) {
 		printf("pid %d: child says hello\n", getpid());