diff --git a/src/environment.go b/src/environment.go
index 49949a47..26fa2853 100644
--- a/src/environment.go
+++ b/src/environment.go
@@ -164,6 +164,7 @@ type environment struct {
 
 func (env *environment) init(args *args) {
 	env.args = args
+	env.resolveConfigPath()
 	env.cmdCache = &commandCache{
 		commands: newConcurrentMap(),
 	}
@@ -175,6 +176,23 @@ func (env *environment) init(args *args) {
 	env.fileCache.init(env.getCachePath())
 }
 
+func (env *environment) resolveConfigPath() {
+	if env.args == nil || env.args.Config == nil {
+		return
+	}
+	configFile := *env.args.Config
+	if strings.HasPrefix(configFile, "~") {
+		configFile = strings.TrimPrefix(configFile, "~")
+		configFile = filepath.Join(env.homeDir(), configFile)
+	}
+	if !filepath.IsAbs(configFile) {
+		if absConfigFile, err := filepath.Abs(configFile); err == nil {
+			configFile = absConfigFile
+		}
+	}
+	*env.args.Config = filepath.Clean(configFile)
+}
+
 func (env *environment) trace(start time.Time, function string, args ...string) {
 	if !env.debug {
 		return