diff --git a/docs/drivers/nvk.rst b/docs/drivers/nvk.rst
index 5f5ced2d4a4..bb57cb849ef 100644
--- a/docs/drivers/nvk.rst
+++ b/docs/drivers/nvk.rst
@@ -27,6 +27,21 @@ Debugging
 Here are a few environment variable debug environment variables
 specific to NVK:
 
+:envvar:`NAK_DEBUG`:
+   a comma-separated list of named flags affecting the NVK back-end shader
+   compiler:
+
+   ``print``
+      Prints the shader at various stages of the compile pipeline
+   ``serial``
+      Forces serial instruction execution; this is often useful for
+      debugging or working around dependency bugs
+   ``spill``
+      Forces the GPR file to a minimal size to test the spilling code
+   ``annotate``
+      Adds extra annotation instructions to the IR to track information
+      from various compile passes
+
 :envvar:`NVK_DEBUG`:
    a comma-separated list of named flags, which do various things: