1 files changed, 4 insertions, 1 deletions
diff --git a/ip.go b/ip.go
index 746eefd..baa442b 100644
--- a/ip.go
+++ b/ip.go
@@ -3,8 +3,11 @@ package pflag
 import (
 	"fmt"
 	"net"
+	"strings"
 )
 
+var _ = strings.TrimSpace
+
 // -- net.IP value
 type ipValue net.IP
 
@@ -15,7 +18,7 @@ func newIPValue(val net.IP, p *net.IP) *ipValue {
 
 func (i *ipValue) String() string { return net.IP(*i).String() }
 func (i *ipValue) Set(s string) error {
-	ip := net.ParseIP(s)
+	ip := net.ParseIP(strings.TrimSpace(s))
 	if ip == nil {
 		return fmt.Errorf("failed to parse IP: %q", s)
 	}