Correct a typo in the apk command

diff --git a/docs/installation/releases_en.md b/docs/installation/releases_en.md
index 31b639d32752cfbc688373d92c3136e46c8307b2..9c108c4ffeca24b5cd2581f8192eb00505515840 100644 (file)
--- a/docs/installation/releases_en.md
+++ b/docs/installation/releases_en.md
@@ -49,7 +49,7 @@ apt install postgresql-11-rum
 ```
 Alpine:
 ```sh
-apk install gcc make
+apk add gcc make
 git clone https://github.com/postgrespro/rum /tmp/rum
 cd /tmp/rum
 make USE_PGXS=1