diff --git a/libcxx/utils/ci/run-buildbot b/libcxx/utils/ci/run-buildbot
--- a/libcxx/utils/ci/run-buildbot
+++ b/libcxx/utils/ci/run-buildbot
@@ -705,10 +705,21 @@
 ;;
 aix)
     clean
+    # Add the AIX version to the triple here because there currently isn't a good
+    # way to retrieve the AIX version in the driver.
+    VERSION=$(oslevel -s | awk -F'-' '{printf "%.1f.%d.%d\n", $1/1000, $2, $3}')
+    if [ "$OBJECT_MODE" -eq 32 ]; then
+        PARAMS="target_triple=powerpc-ibm-aix${VERSION}"
+    else
+        PARAMS="target_triple=powerpc64-ibm-aix${VERSION}"
+    fi
     generate-cmake -C "${MONOREPO_ROOT}/libcxx/cmake/caches/AIX.cmake" \
                    -DLIBCXX_TEST_CONFIG="ibm-libc++-shared.cfg.in" \
                    -DLIBCXXABI_TEST_CONFIG="ibm-libc++abi-shared.cfg.in" \
-                   -DLIBUNWIND_TEST_CONFIG="ibm-libunwind-shared.cfg.in"
+                   -DLIBUNWIND_TEST_CONFIG="ibm-libunwind-shared.cfg.in" \
+		   -DLIBCXX_TEST_PARAMS="${PARAMS}" \
+                   -DLIBCXXABI_TEST_PARAMS="${PARAMS}" \
+                   -DLIBUNWIND_TEST_PARAMS="${PARAMS}"
     check-abi-list
     check-runtimes
 ;;
diff --git a/libunwind/test/signal_frame.pass.cpp b/libunwind/test/signal_frame.pass.cpp
--- a/libunwind/test/signal_frame.pass.cpp
+++ b/libunwind/test/signal_frame.pass.cpp
@@ -19,7 +19,7 @@
 
 // The AIX assembler does not support CFI directives, which
 // are necessary to run this test.
-// UNSUPPORTED: target=powerpc{{(64)?}}-ibm-aix
+// UNSUPPORTED: target={{.*}}-aix{{.*}}
 
 // Windows doesn't generally use CFI directives. However, i686
 // mingw targets do use DWARF (where CFI directives are supported).