diff --git a/run.c b/run.c
index 9ee4de0efb86a425d3bf9cb932f23553ab467fc0..ca5f7489e541d1c1f9b296e03b5be7bd17c877ff 100644
--- a/run.c
+++ b/run.c
@@ -499,6 +499,7 @@ main(int argc, char **argv)
     addenv("ST_DEBUG", "precompile");
     addenv("R600_DEBUG", "precompile");
     addenv("FD_MESA_DEBUG", "shaderdb");
+    addenv("VC4_DEBUG", "shaderdb");
     addenv("V3D_DEBUG", "precompile");
     addenv("ETNA_MESA_DEBUG", "shaderdb");
     addenv("PAN_MESA_DEBUG", "precompile");