diff --git a/include/chat/crypto.h b/include/chat/crypto.h
index 5bc79a2..bd6f9db 100644
--- a/include/chat/crypto.h
+++ b/include/chat/crypto.h
@@ -28,7 +28,7 @@ extern "C" {
 //MACROS
 #define WHY2_CHAT_KEY_BITS 4096 //BITS..
 #define WHY2_CHAT_PRIME_ITERS 100 //NUMBER OF ITERATIONS WHEN CHECKING PRIME NUMBER
-#define WHY2_CHAT_RSA_EXPONENT 65537 //DEFAULT e
+#define WHY2_CHAT_RSA_EXPONENT "65537" //DEFAULT e
 
 #define WHY2_CHAT_KEY_LOCATION WHY2_CHAT_CONFIG_DIR "/keys" //KEYS LOCATION
 #define WHY2_CHAT_PUB_KEY "pub"
diff --git a/src/chat/crypto.c b/src/chat/crypto.c
index 8267c50..c7f4b7d 100644
--- a/src/chat/crypto.c
+++ b/src/chat/crypto.c
@@ -111,7 +111,7 @@ void why2_chat_init_keys(void)
         generate_prime(q);
 
         //SET e
-        mpz_set_ui(e, WHY2_CHAT_RSA_EXPONENT);
+        mpz_set_str(e, WHY2_CHAT_RSA_EXPONENT, 10);
 
         //GET n
         mpz_mul(n, p, q);