diff --git a/shaders/glsl.cpp b/shaders/glsl.cpp
index 5e6005cf..b4dc228f 100644
--- a/shaders/glsl.cpp
+++ b/shaders/glsl.cpp
@@ -1066,5 +1066,6 @@ void GLSLShader::destroy (void)
     pass.clear();
     lut.clear();
     prev_frame.clear();
+    conf.Clear();
 }