diff --git a/auth-client.cc b/auth-client.cc
index 24e7f03..87ea0df 100644
--- a/auth-client.cc
+++ b/auth-client.cc
@@ -46,6 +46,8 @@ int main(int argc, char *argv[]) {
 		}
 	}
 
+	sodium_init();
+
 	SecretKey secret_key;
 	secret_key.ReadFromFile(secret_key_filename);
 
diff --git a/gen-key.cc b/gen-key.cc
index ca4ceaa..4244430 100644
--- a/gen-key.cc
+++ b/gen-key.cc
@@ -10,6 +10,8 @@ int main(int argc, char *argv[]) {
 		return 1;
 	}
 
+	sodium_init();
+
 	SharedKey key;
 	CryptoUtil::GenKey(&key);
 
diff --git a/gen-keypair.cc b/gen-keypair.cc
index 4169ca6..cf11324 100644
--- a/gen-keypair.cc
+++ b/gen-keypair.cc
@@ -10,6 +10,8 @@ int main(int argc, char *argv[]) {
 		return 1;
 	}
 
+	sodium_init();
+
 	SecretKey secret_key;
 	PublicKey public_key;
 	CryptoUtil::GenKeyPair(&secret_key, &public_key);