diff --git a/src/OpenGl/OpenGl_ShaderManager.cxx b/src/OpenGl/OpenGl_ShaderManager.cxx
index 11a0ebe34f..d5ad6b9341 100644
--- a/src/OpenGl/OpenGl_ShaderManager.cxx
+++ b/src/OpenGl/OpenGl_ShaderManager.cxx
@@ -312,6 +312,7 @@ void OpenGl_ShaderManager::PushLightSourceState (const Handle(OpenGl_ShaderProgr
                             OpenGLMaxLights * OpenGl_ShaderLightType::NbOfVec2i(),
                             aLightTypeArray[0].Packed());
     theProgram->UpdateState (OpenGl_LIGHT_SOURCES_STATE, myLightSourceState.Index());
+    delete[] aLightTypeArray;
     return;
   }