diff --git a/tests/cpp-tests/Source/shaders/position_skin_tex.vert b/tests/cpp-tests/Source/shaders/position_skin_tex.vert
index 8a1066c8be..5848e82f37 100644
--- a/tests/cpp-tests/Source/shaders/position_skin_tex.vert
+++ b/tests/cpp-tests/Source/shaders/position_skin_tex.vert
@@ -1,4 +1,7 @@
 #version 310 es
+
+#include "base.glsl"
+
 layout(location = POSITION) in vec3 a_position;
 
 layout(location = BLENDWEIGHT) in vec4 a_blendWeight;