diff --git a/build_r.R b/build_r.R
index e4c54c578680..29a4d3cc382d 100644
--- a/build_r.R
+++ b/build_r.R
@@ -91,6 +91,6 @@ tarball <- file.path(getwd(), sprintf("lightgbm_%s.tar.gz", version))
 cmd <- sprintf("R CMD INSTALL %s --no-multiarch --with-keep.source", tarball)
 if (INSTALL_AFTER_BUILD) {
   .run_shell_command(cmd)
-} else  {
+} else {
   print(sprintf("Skipping installation. Install the package with command '%s'", cmd))
 }