diff --git a/tests/manual/rhi/displacement/buildshaders b/tests/manual/rhi/displacement/buildshaders
index 684a06d0117..87d14a47422 100755
--- a/tests/manual/rhi/displacement/buildshaders
+++ b/tests/manual/rhi/displacement/buildshaders
@@ -1,3 +1,4 @@
+#!/bin/sh
 qsb --glsl 320es,410 --hlsl 50 --msl 12 --msltess material.vert -o material.vert.qsb
 qsb --glsl 320es,410 --hlsl 50 --msl 12 material.frag -o material.frag.qsb
 qsb --glsl 320es,410 --msl 12 --tess-mode triangles material.tesc -o material.tesc.qsb