diff --git a/lldb/test/Shell/helper/toolchain.py b/lldb/test/Shell/helper/toolchain.py
--- a/lldb/test/Shell/helper/toolchain.py
+++ b/lldb/test/Shell/helper/toolchain.py
@@ -54,6 +54,10 @@
                   command=FindTool('lldb'),
                   extra_args=['-S', lldb_init],
                   unresolved='fatal'),
+        ToolSubst('%lldb-server',
+                  command=FindTool("lldb-server"),
+                  extra_args=[],
+                  unresolved='ignore'),
         ToolSubst('%debugserver',
                   command=FindTool(dsname),
                   extra_args=dsargs,
diff --git a/lldb/test/Shell/lldb-server/TestErrorMessages.test b/lldb/test/Shell/lldb-server/TestErrorMessages.test
--- a/lldb/test/Shell/lldb-server/TestErrorMessages.test
+++ b/lldb/test/Shell/lldb-server/TestErrorMessages.test
@@ -1,13 +1,13 @@
-RUN: lldb-server gdbserver --fd 2>&1 | FileCheck --check-prefixes=FD1,ALL %s
+RUN: %lldb-server gdbserver --fd 2>&1 | FileCheck --check-prefixes=FD1,ALL %s
 FD1: error: --fd: missing argument
 
-RUN: lldb-server gdbserver --fd three 2>&1 | FileCheck --check-prefixes=FD2,ALL %s
+RUN: %lldb-server gdbserver --fd three 2>&1 | FileCheck --check-prefixes=FD2,ALL %s
 FD2: error: invalid '--fd' argument
 
-RUN: lldb-server gdbserver --bogus 2>&1 | FileCheck --check-prefixes=BOGUS,ALL %s
+RUN: %lldb-server gdbserver --bogus 2>&1 | FileCheck --check-prefixes=BOGUS,ALL %s
 BOGUS: error: unknown argument '--bogus'
 
-RUN: lldb-server gdbserver 2>&1 | FileCheck --check-prefixes=CONN,ALL %s
+RUN: %lldb-server gdbserver 2>&1 | FileCheck --check-prefixes=CONN,ALL %s
 CONN: error: no connection arguments
 
 ALL: Use '{{.*}} g[dbserver] --help' for a complete list of options.