diff --git a/scene/resources/shader.cpp b/scene/resources/shader.cpp
index 87e5f217d15..8e310b6fa9b 100644
--- a/scene/resources/shader.cpp
+++ b/scene/resources/shader.cpp
@@ -154,7 +154,7 @@ bool Shader::is_text_shader() const {
 
 bool Shader::has_param(const StringName &p_param) const {
 
-	return params_cache.has(p_param);
+	return params_cache.has("shader_param/" + p_param);
 }
 
 void Shader::_update_shader() const {