diff --git a/include/decrypter.h b/include/decrypter.h
index df6534a..d821e18 100644
--- a/include/decrypter.h
+++ b/include/decrypter.h
@@ -25,7 +25,7 @@ extern "C" {
 
 #include <why2/flags.h>
 
-why2_output_flags why2_decrypt_text(char *text, char *keyNew); //TEXT from WILL BE DECRYPTED WITH KEY AND RETURNED
+why2_output_flags why2_decrypt_text(char *text, char *key_new); //TEXT from WILL BE DECRYPTED WITH KEY AND RETURNED
 
 #ifdef __cplusplus
 }
diff --git a/include/encrypter.h b/include/encrypter.h
index 378ea48..b0b25e2 100644
--- a/include/encrypter.h
+++ b/include/encrypter.h
@@ -25,7 +25,7 @@ extern "C" {
 
 #include <why2/flags.h>
 
-why2_output_flags why2_encrypt_text(char *text, char *keyNew); //TEXT from WILL BE ENCRYPTED WITH KEY AND RETURNED
+why2_output_flags why2_encrypt_text(char *text, char *key_new); //TEXT from WILL BE ENCRYPTED WITH KEY AND RETURNED
 
 #ifdef __cplusplus
 }