diff --git a/README.md b/README.md
index 2c863ae..a1e537c 100644
--- a/README.md
+++ b/README.md
@@ -849,7 +849,7 @@ func main() {
 
 ### Generated Help Text
 
-The default help flag (`-h/--help`) is defined as `cli.HelpFlag` and is checked 
+The default help flag (`-h/--help`) is defined as `cli.HelpFlag` and is checked
 by the cli internals in order to print generated help text for the app, command,
 or subcommand, and break execution.
 
@@ -954,7 +954,7 @@ is checked by the cli internals in order to print the `App.Version` via
 
 #### Customization
 
-The default flag may be cusomized to something other than `-v/--version` by
+The default flag may be customized to something other than `-v/--version` by
 setting `cli.VersionFlag`, e.g.:
 
 <!-- {
diff --git a/context.go b/context.go
index 15570c5..492a742 100644
--- a/context.go
+++ b/context.go
@@ -79,7 +79,12 @@ func (c *Context) IsSet(name string) bool {
 					return
 				}
 
-				envVarValue := reflect.ValueOf(f).FieldByName("EnvVar")
+				val := reflect.ValueOf(f)
+				if val.Kind() == reflect.Ptr {
+					val = val.Elem()
+				}
+
+				envVarValue := val.FieldByName("EnvVar")
 				if !envVarValue.IsValid() {
 					return
 				}