diff --git a/buildbot/osuosl/master/config/builders.py b/buildbot/osuosl/master/config/builders.py
--- a/buildbot/osuosl/master/config/builders.py
+++ b/buildbot/osuosl/master/config/builders.py
@@ -1397,7 +1397,10 @@
     'tags'  : ["sanitizer", "ppc"],
     'workernames' : ["ppc64be-sanitizer"],
     'builddir': "sanitizer-ppc64be",
-    'factory' : SanitizerBuilder.getSanitizerBuildFactory(timeout=1800)},
+    'factory' : SanitizerBuilder.getSanitizerBuildFactory(
+                    timeout=1800,
+                    extra_configure_args=[
+                        "--CMAKE_ARGS='-DCMAKE_C_COMPILER=/home/buildbots/gcc/install/gcc-11.2.0/bin/gcc -DCMAKE_CXX_COMPILER=/home/buildbots/gcc/install/gcc-11.2.0/bin/g++ -DCMAKE_CXX_LINK_FLAGS=-Wl,-rpath,/home/buildbots/gcc/install/gcc-11.2.0/lib64 -L/home/buildbots/gcc/install/gcc-11.2.0/lib64'")},
 
     {'name' : "sanitizer-ppc64le-linux",
     'tags'  : ["sanitizer", "ppc", "ppc64le"],