diff --git a/clang/test/Interpreter/bad_percent_command.cpp b/clang/test/Interpreter/bad_percent_command.cpp
index 207570cac1873..95bebeab58d37 100644
--- a/clang/test/Interpreter/bad_percent_command.cpp
+++ b/clang/test/Interpreter/bad_percent_command.cpp
@@ -1,3 +1,4 @@
+// UNSUPPORTED: system-aix
 // RUN: cat %s | clang-repl 2>&1 | FileCheck %s
 %foobar
 // CHECK: Invalid % command "%foobar", use "%help" to list commands
diff --git a/clang/test/Interpreter/dynamic-library-bad-args.cpp b/clang/test/Interpreter/dynamic-library-bad-args.cpp
index f48a2657beacc..7684a8b746c91 100644
--- a/clang/test/Interpreter/dynamic-library-bad-args.cpp
+++ b/clang/test/Interpreter/dynamic-library-bad-args.cpp
@@ -1,3 +1,4 @@
+// UNSUPPORTED: system-aix
 // RUN: cat %s | clang-repl 2>&1 | FileCheck %s
 %lib
 // CHECK: %lib expects 1 argument: the path to a dynamic library
diff --git a/clang/test/Interpreter/help.cpp b/clang/test/Interpreter/help.cpp
index 70f114f4644e3..5573fb4284c65 100644
--- a/clang/test/Interpreter/help.cpp
+++ b/clang/test/Interpreter/help.cpp
@@ -1,3 +1,4 @@
+// UNSUPPORTED: system-aix
 // RUN: cat %s | clang-repl | FileCheck %s
 %help
 // CHECK: %help   list clang-repl %commands