1 files changed, 14 insertions, 0 deletions

diff --git a/README.md b/README.md
index c09046e..e85a58f 100644
--- a/README.md
+++ b/README.md
@@ -94,6 +94,13 @@ $ ./configure
 $ make
 ```
 
+To enable the thumbnail generation program:
+
+```sh
+$ ./configure --thumbnail
+$ make
+```
+
 #### CMake
 
 ```sh
@@ -101,6 +108,13 @@ $ cmake -B build
 $ cmake --build build/
 ```
 
+To enable the thumbnail generation program:
+
+```sh
+$ cmake -B build -DTHUMBNAIL=ON
+$ cmake --build build/
+```
+
 ### Setting up
 
 `slcl` consumes a path to a directory with the following tree structure: