diff --git a/src/gallium/auxiliary/tgsi/tgsi_build.c b/src/gallium/auxiliary/tgsi/tgsi_build.c
index 3db117ac3db..9e1a5534283 100644
--- a/src/gallium/auxiliary/tgsi/tgsi_build.c
+++ b/src/gallium/auxiliary/tgsi/tgsi_build.c
@@ -169,6 +169,7 @@ tgsi_default_declaration_dimension()
    struct tgsi_declaration_dimension dim;
 
    dim.Index2D = 0;
+   dim.Padding = 0;
 
    return dim;
 }