diff --git a/docs/cugraph-docs/source/installation/source_build.md b/docs/cugraph-docs/source/installation/source_build.md
index 29b059e..a3ff055 100644
--- a/docs/cugraph-docs/source/installation/source_build.md
+++ b/docs/cugraph-docs/source/installation/source_build.md
@@ -191,6 +191,9 @@ Next the env_vars.sh file needs to be edited
 vi ./etc/conda/activate.d/env_vars.sh
 
 #!/bin/bash
+# for CUDA 13.x
+export PATH=/usr/local/cuda-13.0/bin:$PATH
+export LD_LIBRARY_PATH=/usr/local/cuda-13.0/lib64:$LD_LIBRARY_PATH
 ```
 
 ```