diff --git a/README.md b/README.md
index 7827ef10..dec6ad61 100644
--- a/README.md
+++ b/README.md
@@ -35,7 +35,7 @@ git submodule update --init --recursive
 
 The `.tar.xz` source releases are all-inclusive.
 
-1. On Linux only, system OpenSSL libraries (`libssl-dev`, in debian-speak) is
+1. On Linux only, system OpenSSL libraries (`libssl-dev`, in debian-speak) are
    assumed to be available.
 2. To build, run `make debug` or `make release`. An executable will be
    generated in a subdirectory of `out/`.