diff --git a/src/add_scalar.c b/src/add_scalar.c
index 196fd5a..72f3e7c 100644
--- a/src/add_scalar.c
+++ b/src/add_scalar.c
@@ -9,7 +9,7 @@ void ed25519_add_scalar(unsigned char *public_key, unsigned char *private_key, c
     const unsigned char SC_1[32] = {1}; /* scalar with value 1 */
     
     unsigned char n[32];
-	unsigned char salt[64];
+    unsigned char salt[64];
     ge_p3 nB;
     ge_p1p1 A_p1p1;
     ge_p3 A;
diff --git a/test.c b/test.c
index b317438..a56d202 100644
--- a/test.c
+++ b/test.c
@@ -14,13 +14,13 @@ const char message[] = "Hello, world!";
 
 int main(int argc, char *argv[]) {
     unsigned char public_key[32], private_key[64], seed[32], scalar[32];
-	unsigned char other_public_key[32], other_private_key[64];
-	unsigned char shared_secret[32], other_shared_secret[32];
+    unsigned char other_public_key[32], other_private_key[64];
+    unsigned char shared_secret[32], other_shared_secret[32];
     unsigned char signature[64];
 
-	clock_t start;
-	clock_t end;
-	int i;
+    clock_t start;
+    clock_t end;
+    int i;
 
     /* create a random seed, and a keypair out of that seed */
     ed25519_create_seed(seed);
@@ -58,32 +58,32 @@ int main(int argc, char *argv[]) {
         printf("correctly detected signature change\n");
     }
 
-	/* generate two keypairs for testing key exchange */
-	ed25519_create_seed(seed);
-	ed25519_create_keypair(public_key, private_key, seed);
-	ed25519_create_seed(seed);
-	ed25519_create_keypair(other_public_key, other_private_key, seed);
+    /* generate two keypairs for testing key exchange */
+    ed25519_create_seed(seed);
+    ed25519_create_keypair(public_key, private_key, seed);
+    ed25519_create_seed(seed);
+    ed25519_create_keypair(other_public_key, other_private_key, seed);
 
-	/* create two shared secrets - from both perspectives - and check if they're equal */
-	ed25519_key_exchange(shared_secret, other_public_key, private_key);
-	ed25519_key_exchange(other_shared_secret, public_key, other_private_key);
+    /* create two shared secrets - from both perspectives - and check if they're equal */
+    ed25519_key_exchange(shared_secret, other_public_key, private_key);
+    ed25519_key_exchange(other_shared_secret, public_key, other_private_key);
 
-	for (i = 0; i < 32; ++i) {
-		if (shared_secret[i] != other_shared_secret[i]) {
-			printf("key exchange was incorrect\n");
-			break;
-		}
-	}
+    for (i = 0; i < 32; ++i) {
+        if (shared_secret[i] != other_shared_secret[i]) {
+            printf("key exchange was incorrect\n");
+            break;
+        }
+    }
 
-	if (i == 32) {
-		printf("key exchange was correct\n");
-	}
+    if (i == 32) {
+        printf("key exchange was correct\n");
+    }
 
     /* test performance */
-	printf("testing seed generation performance: ");
+    printf("testing seed generation performance: ");
     start = clock();
     for (i = 0; i < 10000; ++i) {
-		ed25519_create_seed(seed);
+        ed25519_create_seed(seed);
     }
     end = clock();
 
@@ -127,7 +127,7 @@ int main(int argc, char *argv[]) {
 
     printf("%fus per keypair\n", ((double) ((end - start) * 1000)) / CLOCKS_PER_SEC / i * 1000);
 
-	printf("testing public key scalar addition performance: ");
+    printf("testing public key scalar addition performance: ");
     start = clock();
     for (i = 0; i < 10000; ++i) {
         ed25519_add_scalar(public_key, NULL, scalar);
@@ -136,7 +136,7 @@ int main(int argc, char *argv[]) {
 
     printf("%fus per key\n", ((double) ((end - start) * 1000)) / CLOCKS_PER_SEC / i * 1000);
 
-	printf("testing key exchange performance: ");
+    printf("testing key exchange performance: ");
     start = clock();
     for (i = 0; i < 10000; ++i) {
         ed25519_key_exchange(shared_secret, other_public_key, private_key);