diff --git a/master/custom/builders.py b/master/custom/builders.py
index a89dc270..9a7a4a67 100644
--- a/master/custom/builders.py
+++ b/master/custom/builders.py
@@ -14,8 +14,6 @@
     UnixNoGilBuild,
     UnixNoGilRefleakBuild,
     MacOSAsanNoGilBuild,
-    AIXBuild,
-    AIXBuildWithXLC,
     ClangUnixBuild,
     ClangUbsanLinuxBuild,
     ClangUbsanFunctionLinuxBuild,
@@ -337,10 +335,6 @@
     ("AMD64 NixOS Unstable Refleaks", "malvex-nixos-x86_64", UnixRefleakBuild),
     ("AMD64 NixOS Unstable Perf", "malvex-nixos-x86_64", UnixPerfBuild),
 
-    # AIX ppc64
-    ("PPC64 AIX", "edelsohn-aix-ppc64", AIXBuild),
-    ("PPC64 AIX XLC", "edelsohn-aix-ppc64", AIXBuildWithXLC),
-
     # Solaris sparcv9
     ("SPARCv9 Oracle Solaris 11.4", "kulikjak-solaris-sparcv9", UnixBuild),
 
diff --git a/master/custom/factories.py b/master/custom/factories.py
index 606a5603..f7e54eec 100644
--- a/master/custom/factories.py
+++ b/master/custom/factories.py
@@ -290,24 +290,6 @@ class UnixBigmemBuild(UnixBuild):
     factory_tags = ["bigmem"]
 
 
-class AIXBuild(UnixBuild):
-    configureFlags = [
-        "--with-pydebug",
-        "--with-openssl=/opt/aixtools",
-    ]
-
-
-class AIXBuildWithXLC(UnixBuild):
-    buildersuffix = ".xlc"
-    configureFlags = [
-        "--with-pydebug",
-        "--with-openssl=/opt/aixtools",
-        "CC=xlc_r",
-        "LD=xlc_r",
-    ]
-    factory_tags = ["xlc"]
-
-
 class NonDebugUnixBuild(UnixBuild):
     buildersuffix = ".nondebug"
     # Enable assertions regardless. Some children will override this,
diff --git a/master/custom/workers.py b/master/custom/workers.py
index 04f1a02b..8f0e1a89 100644
--- a/master/custom/workers.py
+++ b/master/custom/workers.py
@@ -178,11 +178,6 @@ def get_workers(settings):
             tags=['linux', 'unix', 'rhel', 's390x'],
             parallel_tests=10,
         ),
-        cpw(
-            name="edelsohn-aix-ppc64",
-            tags=['aix', 'unix', 'ppc64'],
-            parallel_tests=10,
-        ),
         cpw(
             name="gps-raspbian",
             tags=['linux', 'unix', 'raspbian', 'debian', 'armv6', 'armv7l',