diff --git a/lldb/packages/Python/lldbsuite/test/lldbplaygroundrepl.py b/lldb/packages/Python/lldbsuite/test/lldbplaygroundrepl.py
index fa369f8839a57..b3238f5025a26 100644
--- a/lldb/packages/Python/lldbsuite/test/lldbplaygroundrepl.py
+++ b/lldb/packages/Python/lldbsuite/test/lldbplaygroundrepl.py
@@ -56,6 +56,8 @@ def repl_set_up(self):
         target = self.dbg.CreateTarget(exe)
         self.assertTrue(target, VALID_TARGET)
 
+        self.registerSharedLibrariesWithTarget(target, ['libPlaygroundsRuntime.dylib'])
+
         # Set the breakpoints
         breakpoint = target.BreakpointCreateBySourceRegex(
             'Set breakpoint here', self.PlaygroundStub_source_spec)
diff --git a/lldb/packages/Python/lldbsuite/test/make/Makefile.rules b/lldb/packages/Python/lldbsuite/test/make/Makefile.rules
index 004807d34fe66..9734edfd79a39 100644
--- a/lldb/packages/Python/lldbsuite/test/make/Makefile.rules
+++ b/lldb/packages/Python/lldbsuite/test/make/Makefile.rules
@@ -793,6 +793,9 @@ ifneq "$(EXCLUDE_WRAPPED_SWIFTMODULE)" ""
 else
 	$(SWIFTC) $(patsubst -g,,$(SWIFTFLAGS)) -emit-library $(DYLIB_SWIFT_FLAGS) -o $@ $^
 endif
+ifneq "$(CODESIGN)" ""
+	$(CODESIGN) -s - "$(DYLIB_FILENAME)"
+endif
 ifneq "$(MAKE_DSYM)" "NO"
 ifneq "$(DS)" ""
 	"$(DS)" $(DSFLAGS) "$(DYLIB_FILENAME)"