diff --git a/setup.py b/setup.py
index 687c37c8f..1acf1c19c 100644
--- a/setup.py
+++ b/setup.py
@@ -369,7 +369,6 @@ def finalize_options(self):
         try:
             self.library_dirs.append(pg_config_helper.query("libdir"))
             self.include_dirs.append(pg_config_helper.query("includedir"))
-            self.include_dirs.append(pg_config_helper.query("includedir-server"))
 
             # if present, add includedirs from cppflags, libdirs from ldflags
             tokens = pg_config_helper.query("ldflags", empty_ok=True).split()