diff --git a/makepanda/makepanda.py b/makepanda/makepanda.py
index f62ffda6b2..884b79733a 100755
--- a/makepanda/makepanda.py
+++ b/makepanda/makepanda.py
@@ -2044,6 +2044,8 @@ def CompileRsrc(target, src, opts):
     ipath = GetListOption(opts, "DIR:")
     if os.path.isfile("/usr/bin/Rez"):
         cmd = "Rez -useDF"
+    elif os.path.isfile("/Library/Developer/CommandLineTools/usr/bin/Rez"):
+        cmd = "/Library/Developer/CommandLineTools/usr/bin/Rez -useDF"
     else:
         cmd = "/Developer/Tools/Rez -useDF"
     cmd += " -o " + BracketNameWithQuotes(target)
diff --git a/makepanda/makepandacore.py b/makepanda/makepandacore.py
index 18be690671..d450926df4 100644
--- a/makepanda/makepandacore.py
+++ b/makepanda/makepandacore.py
@@ -2383,7 +2383,9 @@ def SdkLocateMacOSX(osxtarget = None):
     if (GetHost() != "darwin"): return
     if (osxtarget != None):
         sdkname = "MacOSX%d.%d" % osxtarget
-        if (os.path.exists("/Developer/SDKs/%su.sdk" % sdkname)):
+        if (os.path.exists("/Library/Developer/CommandLineTools/SDKs/%s.sdk" % sdkname)):
+            SDK["MACOSX"] = "/Library/Developer/CommandLineTools/SDKs/%s.sdk" % sdkname
+        elif (os.path.exists("/Developer/SDKs/%su.sdk" % sdkname)):
             SDK["MACOSX"] = "/Developer/SDKs/%su.sdk" % sdkname
         elif (os.path.exists("/Developer/SDKs/%s.sdk" % sdkname)):
             SDK["MACOSX"] = "/Developer/SDKs/%s.sdk" % sdkname