diff --git a/docs/src/installation.md b/docs/src/installation.md
index 28706457..2bff734b 100644
--- a/docs/src/installation.md
+++ b/docs/src/installation.md
@@ -43,9 +43,9 @@ const RCALL_UUID = UUID("6f49c342-dc21-5d91-9882-a32aef131414")
 CondaPkg.add("r")
 target_rhome = joinpath(CondaPkg.envdir(), "lib", "R")
 if Sys.iswindows()
-    target_libr = joinpath(Rhome, "bin", Sys.WORD_SIZE==64 ? "x64" : "i386", "R.dll")
+    target_libr = joinpath(target_rhome, "bin", Sys.WORD_SIZE==64 ? "x64" : "i386", "R.dll")
 else
-    target_libr = joinpath(Rhome, "lib", "libR.$(Libdl.dlext)")
+    target_libr = joinpath(target_rhome, "lib", "libR.$(Libdl.dlext)")
 end
 set_preferences!(RCALL_UUID, "Rhome" => target_rhome, "libR" => target_libr)
 ```