diff --git a/Misc/ACKS b/Misc/ACKS
index cab01d423d6..2f1604afdcd 100644
--- a/Misc/ACKS
+++ b/Misc/ACKS
@@ -862,6 +862,7 @@ Mark Roddy
 Kevin Rodgers
 Giampaolo Rodola
 Elson Rodriguez
+Adi Roiban
 Luis Rojas
 Mike Romberg
 Armin Ronacher
diff --git a/Misc/NEWS b/Misc/NEWS
index f7440eea46c..ea5448426b3 100644
--- a/Misc/NEWS
+++ b/Misc/NEWS
@@ -264,6 +264,8 @@ Library
 Build
 -----
 
+- Issue #14557: Fix extensions build on HP-UX. Patch by Adi Roiban.
+
 - Issue #14387: Do not include accu.h from Python.h.
 
 - Issue #14359: Only use O_CLOEXEC in _posixmodule.c if it is defined.
diff --git a/setup.py b/setup.py
index fb8c4b604dd..8c6131c6ab1 100644
--- a/setup.py
+++ b/setup.py
@@ -464,6 +464,10 @@ def detect_modules(self):
         if platform in ['osf1', 'unixware7', 'openunix8']:
             lib_dirs += ['/usr/ccs/lib']
 
+        # HP-UX11iv3 keeps files in lib/hpux folders.
+        if platform == 'hp-ux11':
+            lib_dirs += ['/usr/lib/hpux64', '/usr/lib/hpux32']
+
         if platform == 'darwin':
             # This should work on any unixy platform ;-)
             # If the user has bothered specifying additional -I and -L flags