diff --git a/scene/resources/shader.cpp b/scene/resources/shader.cpp
index 4ca8032d65..4249542567 100644
--- a/scene/resources/shader.cpp
+++ b/scene/resources/shader.cpp
@@ -125,7 +125,7 @@ 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 {