diff --git a/libraries/procedural/src/procedural/Procedural.cpp b/libraries/procedural/src/procedural/Procedural.cpp
index 9670b66676..11df332c5c 100644
--- a/libraries/procedural/src/procedural/Procedural.cpp
+++ b/libraries/procedural/src/procedural/Procedural.cpp
@@ -142,7 +142,7 @@ bool Procedural::parseTextures(const QJsonArray& channels) {
     return true;
 }
 
-void Procedural::parse(QJsonObject proceduralData) {
+void Procedural::parse(const QJsonObject& proceduralData) {
     _enabled = false;
 
     if (proceduralData.isEmpty()) {
diff --git a/libraries/procedural/src/procedural/Procedural.h b/libraries/procedural/src/procedural/Procedural.h
index 75872ca2bc..cac3f782e4 100644
--- a/libraries/procedural/src/procedural/Procedural.h
+++ b/libraries/procedural/src/procedural/Procedural.h
@@ -93,7 +93,7 @@ protected:
 
 private:
     // This should only be called from the render thread, as it shares data with Procedural::prepare
-    void parse(QJsonObject);
+    void parse(const QJsonObject&);
     bool parseVersion(const QJsonValue& version);
     bool parseUrl(const QUrl& url);
     bool parseUniforms(const QJsonObject& uniforms);