diff --git a/src/cpp_implementation/README.md b/src/cpp_implementation/README.md
index 7b543c9..9d87f53 100644
--- a/src/cpp_implementation/README.md
+++ b/src/cpp_implementation/README.md
@@ -28,6 +28,6 @@ There are a bunch of options you can predefine but do not have to. The only para
 | -w        | Size of  M (window).      	    | 5      |
 | -c        | Choose RGB color channel, green has least noise. | green  |
 | -l        | Learnrate of machine learning. | 0.4    |
-| -g        | include graph building. Choose for amount of input data lower than 1200. Choose path if template is located in another folder, else use true.| none|
+| -g        | include graph building. Choose for amount of input data lower than 1200. Choose path if template is located in another folder, else use true. Do not use whitespace in path.| none|
 | -s        | Seed randomizing weights. Choose for repoducability. | time(NULL)|