diff --git a/src/config.cpp b/src/config.cpp
index 990a8ff45ac..61b91f1b415 100644
--- a/src/config.cpp
+++ b/src/config.cpp
@@ -855,6 +855,7 @@ namespace config {
     true,  // virtualhid_randomize_mac
 
     true,  // keyboard enabled
+    false,  // key_rightalt_to_key_win
     true,  // mouse enabled
     true,  // controller enabled
     true,  // always send scancodes
diff --git a/tests/unit/test_config.cpp b/tests/unit/test_config.cpp
new file mode 100644
index 00000000000..3fac7ef00d3
--- /dev/null
+++ b/tests/unit/test_config.cpp
@@ -0,0 +1,32 @@
+/**
+ * @file tests/unit/test_config.cpp
+ * @brief Test src/config.* default values.
+ */
+// test imports
+#include "../tests_common.h"
+
+// local imports
+#include <src/config.h>
+
+/**
+ * @brief Verify that native_pen_touch defaults to enabled.
+ *
+ * The input_t aggregate initializer previously omitted the key_rightalt_to_key_win
+ * member, which shifted every subsequent field and left native_pen_touch (the
+ * final member) value-initialized to false despite the surrounding comment
+ * suggesting true. This test guards the corrected default.
+ */
+TEST(ConfigInputTest, NativePenTouchDefaultsToEnabled) {
+  EXPECT_TRUE(config::input.native_pen_touch);
+}
+
+/**
+ * @brief Verify that key_rightalt_to_key_win defaults to disabled.
+ *
+ * This member is documented and configured as disabled by default; the
+ * aggregate initializer now explicitly sets it to false. It was previously
+ * omitted, causing the field to shift and native_pen_touch to default to false.
+ */
+TEST(ConfigInputTest, KeyRightAltToKeyWinDefaultsToDisabled) {
+  EXPECT_FALSE(config::input.key_rightalt_to_key_win);
+}