diff --git a/.pytool/Plugin/DscCompleteCheck/DscCompleteCheck.py b/.pytool/Plugin/DscCompleteCheck/DscCompleteCheck.py
index e2485f5708..9af4f72c8d 100644
--- a/.pytool/Plugin/DscCompleteCheck/DscCompleteCheck.py
+++ b/.pytool/Plugin/DscCompleteCheck/DscCompleteCheck.py
@@ -61,7 +61,7 @@ class DscCompleteCheck(ICiBuildPlugin):
         abs_dsc_path = os.path.join(abs_pkg_path, pkgconfig["DscPath"].strip())
         wsr_dsc_path = Edk2pathObj.GetEdk2RelativePathFromAbsolutePath(abs_dsc_path)
 
-        if abs_dsc_path is None or wsr_dsc_path is "" or not os.path.isfile(abs_dsc_path):
+        if abs_dsc_path is None or wsr_dsc_path == "" or not os.path.isfile(abs_dsc_path):
             tc.SetSkipped()
             tc.LogStdError("Package Dsc not found")
             return 0
diff --git a/.pytool/Plugin/LibraryClassCheck/LibraryClassCheck.py b/.pytool/Plugin/LibraryClassCheck/LibraryClassCheck.py
index 5dafcbc13f..a62a7e912b 100644
--- a/.pytool/Plugin/LibraryClassCheck/LibraryClassCheck.py
+++ b/.pytool/Plugin/LibraryClassCheck/LibraryClassCheck.py
@@ -67,7 +67,7 @@ class LibraryClassCheck(ICiBuildPlugin):
         abs_dec_path = self.__GetPkgDec(abs_pkg_path)
         wsr_dec_path = Edk2pathObj.GetEdk2RelativePathFromAbsolutePath(abs_dec_path)
 
-        if abs_dec_path is None or wsr_dec_path is "" or not os.path.isfile(abs_dec_path):
+        if abs_dec_path is None or wsr_dec_path == "" or not os.path.isfile(abs_dec_path):
             tc.SetSkipped()
             tc.LogStdError("No DEC file {0} in package {1}".format(abs_dec_path, abs_pkg_path))
             return -1