diff --git a/scripts/kconfig/kconfig.py b/scripts/kconfig/kconfig.py
index b33afde2bdd..883dd1fd992 100755
--- a/scripts/kconfig/kconfig.py
+++ b/scripts/kconfig/kconfig.py
@@ -58,6 +58,13 @@ def main():
         kconf.load_config(config, replace=False)
 
 
+    # Write the merged configuration and the C header. This will evaluate all
+    # symbols, which might generate additional warnings, so do it before
+    # checking for warnings.
+    kconf.write_config(args.dotconfig)
+    kconf.write_autoconf(args.autoconf)
+
+
     # Print warnings for symbols whose actual value doesn't match the assigned
     # value
     for sym in kconf.defined_syms:
@@ -93,13 +100,6 @@ def main():
                      .format(warning, sys.argv[0]))
 
 
-    # Write the merged configuration
-    kconf.write_config(args.dotconfig)
-
-    # Write the C header
-    kconf.write_autoconf(args.autoconf)
-
-
 # Message printed when a promptless symbol is assigned (and doesn't get the
 # assigned value)
 PROMPTLESS_HINT = """