diff --git a/es-core/src/ThemeData.cpp b/es-core/src/ThemeData.cpp
index 3e680943b..4dc67761a 100644
--- a/es-core/src/ThemeData.cpp
+++ b/es-core/src/ThemeData.cpp
@@ -175,6 +175,7 @@ std::map<std::string, std::map<std::string, ThemeData::ElementPropertyType>>
        {"itemSize", NORMALIZED_PAIR},
        {"itemScale", FLOAT},
        {"itemRelativeScale", FLOAT},
+       {"itemFit", STRING},
        {"itemSpacing", NORMALIZED_PAIR},
        {"itemColor", COLOR},
        {"itemColorEnd", COLOR},