diff --git a/envconf.go b/envconf.go
index 3f44bde..f50fa54 100644
--- a/envconf.go
+++ b/envconf.go
@@ -148,7 +148,7 @@ func (c *Config) help() {
 			if v.dtype != TypeNone {
 				if v.hasdef {
 					format := fmt.Sprintf("Variable   %%-%ds|   Type %%-%ds|   Default %%s\n", max[0]+5, max[1]+3)
-					fmt.Printf(format, strings.Sprintf(`"%s"`, k), v.dtype, strings.Sprintf(`"%s"`, v.defval))
+					fmt.Printf(format, fmt.Sprintf(`"%s"`, k), v.dtype, fmt.Sprintf(`"%s"`, v.defval))
 				}
 			}
 		}
@@ -159,7 +159,7 @@ func (c *Config) help() {
 			if v.dtype != TypeNone {
 				if !v.hasdef {
 					format := fmt.Sprintf("Variable   %%-%ds|   Type %%-%ds|   Required\n", max[0]+5, max[1]+3)
-					fmt.Printf(format, strings.Sprintf(`"%s"`, k), v.dtype)
+					fmt.Printf(format, fmt.Sprintf(`"%s"`, k), v.dtype)
 				}
 			}
 		}