diff --git a/React/CSSLayout/CSSLayout.c b/React/CSSLayout/CSSLayout.c
index 51d1859393..dd38a20c44 100644
--- a/React/CSSLayout/CSSLayout.c
+++ b/React/CSSLayout/CSSLayout.c
@@ -2519,7 +2519,7 @@ void CSSLog(CSSLogLevel level, const char *format, ...) {
   va_end(args);
 }
 
-static bool experimentalFeatures[CSSExperimentalFeatureCount];
+static bool experimentalFeatures[CSSExperimentalFeatureCount + 1];
 
 void CSSLayoutSetExperimentalFeatureEnabled(CSSExperimentalFeature feature, bool enabled) {
   experimentalFeatures[feature] = enabled;
diff --git a/ReactCommon/CSSLayout/CSSLayout/CSSLayout.c b/ReactCommon/CSSLayout/CSSLayout/CSSLayout.c
index 51d1859393..dd38a20c44 100644
--- a/ReactCommon/CSSLayout/CSSLayout/CSSLayout.c
+++ b/ReactCommon/CSSLayout/CSSLayout/CSSLayout.c
@@ -2519,7 +2519,7 @@ void CSSLog(CSSLogLevel level, const char *format, ...) {
   va_end(args);
 }
 
-static bool experimentalFeatures[CSSExperimentalFeatureCount];
+static bool experimentalFeatures[CSSExperimentalFeatureCount + 1];
 
 void CSSLayoutSetExperimentalFeatureEnabled(CSSExperimentalFeature feature, bool enabled) {
   experimentalFeatures[feature] = enabled;