diff --git a/absl/base/config.h b/absl/base/config.h
index 1a9bc591..90a730f5 100644
--- a/absl/base/config.h
+++ b/absl/base/config.h
@@ -561,7 +561,7 @@ static_assert(ABSL_INTERNAL_INLINE_NAMESPACE_STR[0] != 'h' ||
 #if !defined(ABSL_OPTION_USE_STD_STRING_VIEW)
 #error options.h is misconfigured.
 #elif ABSL_OPTION_USE_STD_STRING_VIEW == 0
-#undef ABSL_USES_STD_STRING_VIEW
+#define ABSL_USES_STD_STRING_VIEW 1
 #elif ABSL_OPTION_USE_STD_STRING_VIEW == 1 || \
     ABSL_OPTION_USE_STD_STRING_VIEW == 2
 #define ABSL_USES_STD_STRING_VIEW 1