diff --git a/source/blender/gpu/intern/gpu_shader.c b/source/blender/gpu/intern/gpu_shader.c
index 3a6ad04b69a..67ae1414b66 100644
--- a/source/blender/gpu/intern/gpu_shader.c
+++ b/source/blender/gpu/intern/gpu_shader.c
@@ -173,7 +173,9 @@ extern char datatoc_gpu_shader_gpencil_fill_frag_glsl[];
 /* cache of built-in shaders (each is created on first use) */
 static GPUShader *builtin_shaders[GPU_NUM_BUILTIN_SHADERS] = { NULL };
 
+#ifndef NDEBUG
 static uint g_shaderid = 0;
+#endif
 
 typedef struct {
 	const char *vert;