diff --git a/src/gallium/drivers/r600/sfn/sfn_vertexstageexport.cpp b/src/gallium/drivers/r600/sfn/sfn_vertexstageexport.cpp
index bcaa5f405f6..b7809a060f6 100644
--- a/src/gallium/drivers/r600/sfn/sfn_vertexstageexport.cpp
+++ b/src/gallium/drivers/r600/sfn/sfn_vertexstageexport.cpp
@@ -376,6 +376,7 @@ bool VertexStageExportForFS::emit_stream(int stream)
 VertexStageExportForGS::VertexStageExportForGS(VertexStage &proc,
                                                const r600_shader *gs_shader):
    VertexStageExportBase(proc),
+   m_num_clip_dist(0),
    m_gs_shader(gs_shader)
 {