diff --git a/c/src/p2fa.c b/c/src/p2fa.c
index d3752ee..28422db 100644
--- a/c/src/p2fa.c
+++ b/c/src/p2fa.c
@@ -37,6 +37,7 @@ int computeWidth(char* text, sFONT *font) {
     return (font->Width) * strlen(text);
 }
 
+//TODO Put display to sleep after
 void code(UWORD *blackImage, char* confName) {
     int ch;
     codeLoop:
diff --git a/go/totp.go b/go/totp.go
index 3227f5c..372bf64 100644
--- a/go/totp.go
+++ b/go/totp.go
@@ -113,13 +113,16 @@ func loadConfigs() {
 		}
 
 		config := otp.Config{
-			Key:      key,
 			Hash:     hashVar,
 			TimeStep: timeStep,
 			Counter:  counter,
 			Digits:   digits,
 			Format:   format,
 		}
+		err = config.ParseKey(key)
+		if err != nil {
+			panic(err)
+		}
 
 		fileName := fileEntry.Name()
 		ext := filepath.Ext(fileName)