diff --git a/intern/cycles/render/osl.cpp b/intern/cycles/render/osl.cpp
index cf94df5f98f..676afad997e 100644
--- a/intern/cycles/render/osl.cpp
+++ b/intern/cycles/render/osl.cpp
@@ -891,6 +891,7 @@ void OSLCompiler::parameter(ShaderNode* node, const char *name)
 		case SocketType::NODE:
 		case SocketType::NODE_ARRAY:
 		case SocketType::UNDEFINED:
+		case SocketType::UINT:
 		{
 			assert(0);
 			break;