diff --git a/source/blender/gpu/shaders/gpu_shader_2D_nodelink_vert.glsl b/source/blender/gpu/shaders/gpu_shader_2D_nodelink_vert.glsl
index acc7030415f..8325568988c 100644
--- a/source/blender/gpu/shaders/gpu_shader_2D_nodelink_vert.glsl
+++ b/source/blender/gpu/shaders/gpu_shader_2D_nodelink_vert.glsl
@@ -48,6 +48,7 @@ uniform bool doMuted;
 uniform float dim_factor;
 uniform float thickness;
 uniform float dash_factor;
+uniform float dash_alpha;
 
 #  define colShadow colors[0]
 #  define colStart colors[1]