diff --git a/wscript b/wscript
index ec42a6522..487427c05 100644
--- a/wscript
+++ b/wscript
@@ -889,17 +889,17 @@ class print_introspected_doxygen_task(Task.TaskBase):
         else:
             prog = program_obj.path.find_or_declare(ccroot.get_target_name(program_obj)).abspath(env)
 
-        # Create a header file with the introspected information.
-        doxygen_out = open(os.path.join('doc', 'introspected-doxygen.h'), 'w')
-        if subprocess.Popen([prog], stdout=doxygen_out, env=proc_env).wait():
-            raise SystemExit(1)
-        doxygen_out.close()
-    
-        # Create a text file with the introspected information.
-        text_out = open(os.path.join('doc', 'ns3-object.txt'), 'w')
-        if subprocess.Popen([prog, '--output-text'], stdout=text_out, env=proc_env).wait():
-            raise SystemExit(1)
-        text_out.close()
+            # Create a header file with the introspected information.
+            doxygen_out = open(os.path.join('doc', 'introspected-doxygen.h'), 'w')
+            if subprocess.Popen([prog], stdout=doxygen_out, env=proc_env).wait():
+                raise SystemExit(1)
+            doxygen_out.close()
+        
+            # Create a text file with the introspected information.
+            text_out = open(os.path.join('doc', 'ns3-object.txt'), 'w')
+            if subprocess.Popen([prog, '--output-text'], stdout=text_out, env=proc_env).wait():
+                raise SystemExit(1)
+            text_out.close()
 
 class run_python_unit_tests_task(Task.TaskBase):
     after = 'cc cxx link'