diff --git a/demos/digest/BIO_f_md.c b/demos/digest/BIO_f_md.c
index 2ecc53e..0a1f319 100644
--- a/demos/digest/BIO_f_md.c
+++ b/demos/digest/BIO_f_md.c
@@ -47,7 +47,7 @@
     char *digest_value=NULL;
     int j;
 
-    input = BIO_new_fd( fileno(stdin), 1 );
+    input = BIO_new_fd(fileno(stdin), 1);
     if (input == NULL) {
         fprintf(stderr, "BIO_new_fd() for stdin returned NULL\n");
         goto cleanup;
@@ -63,7 +63,7 @@
      * The algorithm name is case insensitive. 
      * See providers(7) for details about algorithm fetching
      */
-    md = EVP_MD_fetch( library_context, "SHA3-512", NULL );
+    md = EVP_MD_fetch(library_context, "SHA3-512", NULL);
     if (md == NULL) {
         fprintf(stderr, "EVP_MD_fetch did not find SHA3-512.\n");
         goto cleanup;
@@ -81,7 +81,7 @@
         goto cleanup;
     }
     /* set our bio_digest BIO to digest data */
-    if (BIO_set_md(bio_digest,md) != 1) {
+    if (BIO_set_md(bio_digest, md) != 1) {
            fprintf(stderr, "BIO_set_md failed.\n");
            goto cleanup;
     }
@@ -89,9 +89,9 @@
      * We will use BIO chaining so that as we read, the digest gets updated
      * See the man page for BIO_push
      */
-    BIO *reading = BIO_push( bio_digest, input );
-    
-    while( BIO_read(reading, buffer, sizeof(buffer)) > 0 )
+    BIO *reading = BIO_push(bio_digest, input);
+
+    while (BIO_read(reading, buffer, sizeof(buffer)) > 0)
         ;
 
     /*-
@@ -102,12 +102,12 @@
         fprintf(stderr, "BIO_gets(bio_digest) failed\n");
         goto cleanup;
     }
-    for (j=0; j<digest_size; j++) {
+    for (j = 0; j < digest_size; j++) {
         fprintf(stdout, "%02x", (unsigned char)digest_value[j]);
     }
     fprintf(stdout, "\n");
     result = 0;
-    
+
 cleanup:
     if (result != 0) 
         ERR_print_errors_fp(stderr);
diff --git a/demos/digest/EVP_MD_stdin.c b/demos/digest/EVP_MD_stdin.c
index 71a3d32..43a820f 100644
--- a/demos/digest/EVP_MD_stdin.c
+++ b/demos/digest/EVP_MD_stdin.c
@@ -124,7 +124,7 @@
 int main(void)
 {
     int result = 1;
-    BIO *input = BIO_new_fd( fileno(stdin), 1 );
+    BIO *input = BIO_new_fd(fileno(stdin), 1);
 
     if (input != NULL) {
         result = demonstrate_digest(input);
diff --git a/demos/kdf/pbkdf2.c b/demos/kdf/pbkdf2.c
index 3e0adae..ae0a63b 100644
--- a/demos/kdf/pbkdf2.c
+++ b/demos/kdf/pbkdf2.c
@@ -35,7 +35,7 @@
 static unsigned char pbkdf2_salt[] = {
     'N', 'a', 'C', 'l'
 };
-    
+
 /*
  * The iteration parameter can be variable or hard coded.  The disadvantage with
  * hard coding them is that they cannot easily be adjusted for future