diff --git a/lfsr.c b/lfsr.c
index 20be255..3f7b994 100644
--- a/lfsr.c
+++ b/lfsr.c
@@ -4,7 +4,7 @@
  * @version 1.1
  * @date
  *  Created:     Wed Feb 02, 2011 18:47 EET
- *  Last Update: Wed Sep 18, 2013 13:54 BST
+ *  Last Update: Thu Oct 06, 2016 14:42 CEST
  *------------------------------------------------------------------------
  * Description: Galois LFSR software implementation
  *      WARNING:
@@ -42,10 +42,9 @@
  */
 #include "lfsr.h"
 
-void GLFSR_init(lfsr_t *glfsr, lfsr_data_t polynom, lfsr_data_t seed_value)
-{
+void GLFSR_init(lfsr_t *glfsr, lfsr_data_t polynom, lfsr_data_t seed_value) {
     lfsr_data_t seed_mask;
-    unsigned int shift = 8 * sizeof lfsr_data_t - 1;
+    unsigned int shift = 8 * sizeof (lfsr_data_t) - 1;
 
     glfsr->polynomial = polynom | 1;
     glfsr->data = seed_value;
@@ -63,8 +62,7 @@ void GLFSR_init(lfsr_t *glfsr, lfsr_data_t polynom, lfsr_data_t seed_value)
     return;
 }
 
-unsigned char GLFSR_next(lfsr_t *glfsr)
-{
+unsigned char GLFSR_next(lfsr_t *glfsr) {
     unsigned char retval = 0;
 
     glfsr->data <<= 1;
diff --git a/prng.c b/prng.c
index c2727ae..6dc7c2a 100644
--- a/prng.c
+++ b/prng.c
@@ -2,7 +2,7 @@
  * @file        prng.c
  * @author      Michael Foukarakis
  * @date        Created:     Wed Mar 12, 2014 14:03 GMT
- *              Last Update: Wed Mar 12, 2014 14:05 GMT
+ *              Last Update: Thu Oct 06, 2016 14:43 CEST
  * @description PRNG using linear feedback shift registers.
  *              One shift register is used to provide data, while another register is used
  *              to "clock" data output; meaning a data bit is output when the clock
@@ -37,12 +37,12 @@ int main(int argc, char **argv)
             exit(-1);
     }
 
-    sscanf(argv[1], "%lx", &polynom_d);
-    sscanf(argv[2], "%lx", &init_value_d);
+    sscanf(argv[1], "%llx", &polynom_d);
+    sscanf(argv[2], "%llx", &init_value_d);
     GLFSR_init(&glfsr_d0, polynom_d, init_value_d);
 
-    sscanf(argv[3], "%lx", &polynom_c);
-    sscanf(argv[4], "%lx", &init_value_c);
+    sscanf(argv[3], "%llx", &polynom_c);
+    sscanf(argv[4], "%llx", &init_value_c);
     GLFSR_init(&glfsr_c0, polynom_c, init_value_c);
 
     do {