diff --git a/README.md b/README.md
index 7944aa8..8c34d7f 100644
--- a/README.md
+++ b/README.md
@@ -62,7 +62,7 @@ If you want to write your own meta encoding for `plasp`’s output, this [simple
 
 ## Building
 
-`plasp` requires `boost` and is built via CMake and a C++ compiler.
+`plasp` is built via CMake and a C++ compiler.
 
 See [building](doc/building.md) for more details.
 
diff --git a/doc/building.md b/doc/building.md
index 037c109..556aeec 100644
--- a/doc/building.md
+++ b/doc/building.md
@@ -1,6 +1,6 @@
 # Building
 
-`plasp` requires a C++17 compiler (preferrably GCC ≥ 6.1 or clang ≥ 3.8), the `boost` libraries (≥ 1.55), and CMake for building.
+`plasp` requires a C++17 compiler (preferably GCC ≥ 6.1 or clang ≥ 3.8), the `boost` libraries (≥ 1.55), and CMake for building.
 
 ```bash
 $ git clone https://github.com/potassco/plasp.git