diff --git a/src/core/os.c b/src/core/os.c
index 4368bcd7..a16d472d 100644
--- a/src/core/os.c
+++ b/src/core/os.c
@@ -941,7 +941,6 @@ static Janet os_execute_impl(int32_t argc, Janet *argv, int is_spawn) {
         janet_unlock_environ();
     }
 
-    /* Wait for child */
     os_execute_cleanup(envp, child_argv);
     if (status) {
         janet_panicf("%p: %s", argv[0], strerror(errno));
diff --git a/test/suite0010.janet b/test/suite0010.janet
index e541f35e..752bbad2 100644
--- a/test/suite0010.janet
+++ b/test/suite0010.janet
@@ -143,4 +143,7 @@
 (assert (< 100 1e23) "greater than immediate 1")
 (assert (< 1000 1e23) "greater than immediate 2")
 
+# os/execute with environment variables
+(assert (= 0 (os/execute [(dyn :executable) "-e" "(+ 1 2 3)"] :pe {"HELLO" "WORLD"})) "os/execute with env")
+
 (end-suite)