diff --git a/tests/include/test/random.h b/tests/include/test/random.h
index 58548a2..c557208 100644
--- a/tests/include/test/random.h
+++ b/tests/include/test/random.h
@@ -30,12 +30,11 @@
 #include <stddef.h>
 #include <stdint.h>
 
-typedef struct
-{
+typedef struct {
     unsigned char *buf; /* Pointer to a buffer of length bytes. */
     size_t length;
     /* If fallback_f_rng is NULL, fail after delivering length bytes. */
-    int ( *fallback_f_rng )( void*, unsigned char *, size_t );
+    int (*fallback_f_rng)(void *, unsigned char *, size_t);
     void *fallback_p_rng;
 } mbedtls_test_rnd_buf_info;
 
@@ -46,8 +45,7 @@
  * Do not forget endianness!
  * State( v0, v1 ) should be set to zero.
  */
-typedef struct
-{
+typedef struct {
     uint32_t key[16];
     uint32_t v0, v1;
 } mbedtls_test_rnd_pseudo_info;
@@ -61,18 +59,18 @@
  *
  * rng_state shall be NULL.
  */
-int mbedtls_test_rnd_std_rand( void *rng_state,
-                               unsigned char *output,
-                               size_t len );
+int mbedtls_test_rnd_std_rand(void *rng_state,
+                              unsigned char *output,
+                              size_t len);
 
 /**
  * This function only returns zeros.
  *
  * \p rng_state shall be \c NULL.
  */
-int mbedtls_test_rnd_zero_rand( void *rng_state,
-                                unsigned char *output,
-                                size_t len );
+int mbedtls_test_rnd_zero_rand(void *rng_state,
+                               unsigned char *output,
+                               size_t len);
 
 /**
  * This function returns random data based on a buffer it receives.
@@ -86,9 +84,9 @@
  * #mbedtls_test_rnd_buf_info structure if there is one, and
  * will return #MBEDTLS_ERR_ENTROPY_SOURCE_FAILED otherwise.
  */
-int mbedtls_test_rnd_buffer_rand( void *rng_state,
-                                  unsigned char *output,
-                                  size_t len );
+int mbedtls_test_rnd_buffer_rand(void *rng_state,
+                                 unsigned char *output,
+                                 size_t len);
 
 /**
  * This function returns random based on a pseudo random function.
@@ -98,8 +96,8 @@
  *
  * \p rng_state shall be a pointer to a #mbedtls_test_rnd_pseudo_info structure.
  */
-int mbedtls_test_rnd_pseudo_rand( void *rng_state,
-                                  unsigned char *output,
-                                  size_t len );
+int mbedtls_test_rnd_pseudo_rand(void *rng_state,
+                                 unsigned char *output,
+                                 size_t len);
 
 #endif /* TEST_RANDOM_H */