diff --git a/source/_posts/2014-11-22-debian-jessie-on-dell-precision-m4800.markdown b/source/_posts/2014-11-22-debian-jessie-on-dell-precision-m4800.markdown
index daf0c4e..edfbb03 100644
--- a/source/_posts/2014-11-22-debian-jessie-on-dell-precision-m4800.markdown
+++ b/source/_posts/2014-11-22-debian-jessie-on-dell-precision-m4800.markdown
@@ -15,8 +15,9 @@ To install the nVidia driver:
 
   * make sure installed kernel headers (linux-headers) match kernel (linux-image),
     otherwise DKMS won't build.
-  * install nvidia-driver
-  * run `nvidia-xconfig --query-gpu-info` by hand and set PCI dia BusID
+  * install nvidia-driver (note: this will build a kernel module, so requires
+    a working compiler)
+  * run `nvidia-xconfig --query-gpu-info` by hand and make note of PCI BusID
   * run `nvidia-xconfig --busid=PCI:x:x:x` to generate xorg.conf
 
 BIOS setup