diff --git a/.golangci.yaml b/.golangci.yaml
index 8b2211705bdb808e7b00736ec45aaae5971735c1..5bc1f83b89e57acda1d65416c08be1cb0c6cf7b7 100644
--- a/.golangci.yaml
+++ b/.golangci.yaml
@@ -114,6 +114,7 @@ linters:
     - wrapcheck
     - wsl_v5
     - zerologlint
+    - prealloc
 
   disable:
     - depguard
diff --git a/internal/completion/completion.go b/internal/completion/completion.go
index 7f03746a00c4bc85295c760c7f1dd24f6b98be6f..9bab7ba7bd07121e33e0c7448e04b00fb94e12ee 100644
--- a/internal/completion/completion.go
+++ b/internal/completion/completion.go
@@ -32,7 +32,12 @@ func Goals(_ *cobra.Command, _ []string, _ string) ([]string, cobra.ShellCompDir
 		return nil, cobra.ShellCompDirectiveError
 	}
 
-	var keys []string
+	totalGoals := 0
+	for _, a := range cfg.Areas {
+		totalGoals += len(a.Goals)
+	}
+
+	keys := make([]string, 0, totalGoals)
 
 	for _, a := range cfg.Areas {
 		for _, g := range a.Goals {