diff --git a/_constraints b/_constraints
index eb02688..323953f 100644
--- a/_constraints
+++ b/_constraints
@@ -5,7 +5,7 @@
       <size unit="G">35</size>
     </disk>
     <memory>
-      <size unit="M">4096</size>
+      <size unit="M">8192</size>
     </memory>
   </hardware>
   <hostlabel exclude="true">SLOW_CPU</hostlabel>
diff --git a/llvm15.changes b/llvm15.changes
index cbec1ac..fa9d5cf 100644
--- a/llvm15.changes
+++ b/llvm15.changes
@@ -1,6 +1,8 @@
 -------------------------------------------------------------------
-Sun Mar  3 20:30:50 UTC 2024 - Aaron Puchert <aaronpuchert@alice-dsl.net>
+Mon Mar  4 21:29:51 UTC 2024 - Aaron Puchert <aaronpuchert@alice-dsl.net>
 
+- Fix PowerPC triples: use powerpc[64[le]] instead of ppc[64[le]].
+- Require 8 GB memory for 64-bit architectures to prevent OOM.
 - Disable test that fails on ppc64le.
 
 -------------------------------------------------------------------
diff --git a/llvm15.spec b/llvm15.spec
index 7b9d305..8841c5e 100644
--- a/llvm15.spec
+++ b/llvm15.spec
@@ -71,7 +71,8 @@
 # See https://build.opensuse.org/request/show/968066.
 %define target_cpu armv6kz
 %else
-%define target_cpu %{_target_cpu}
+# What RPM spells ppc, GCC spells powerpc.
+%define target_cpu %{lua:print((string.gsub(rpm.expand("%{_target_cpu}"), "ppc", "powerpc")))}
 %endif
 
 %ifarch %{arm}