diff --git a/scripts/mk_unix_dist.py b/scripts/mk_unix_dist.py
index 5b019f17b..bad51528f 100644
--- a/scripts/mk_unix_dist.py
+++ b/scripts/mk_unix_dist.py
@@ -65,7 +65,7 @@ def display_help():
 
 # Parse configuration option for mk_make script
 def parse_options():
-    global FORCE_MK, JAVA_ENABLED, GIT_HASH, DOTNET_ENABLED, DOTNET_KEY_FILE
+    global FORCE_MK, JAVA_ENABLED, GIT_HASH, DOTNET_ENABLED, DOTNET_CORE_ENABLED, DOTNET_KEY_FILE
     path = BUILD_DIR
     options, remainder = getopt.gnu_getopt(sys.argv[1:], 'b:hsf', ['build=',
                                                                    'help',
diff --git a/scripts/mk_win_dist.py b/scripts/mk_win_dist.py
index e61a7714c..bd3cad18a 100644
--- a/scripts/mk_win_dist.py
+++ b/scripts/mk_win_dist.py
@@ -104,6 +104,7 @@ def parse_options():
             DOTNET_ENABLED = False
         elif opt == '--dotnetcore':
             DOTNET_CORE_ENABLED = True
+            DOTNET_ENABLED = False
         elif opt == '--nopython':
             PYTHON_ENABLED = False
         elif opt == '--dotnet-key':