diff --git a/library/platform_util.c b/library/platform_util.c
index 3d5cb5b..3c3ebca 100644
--- a/library/platform_util.c
+++ b/library/platform_util.c
@@ -104,15 +104,15 @@
                                       struct tm *tm_buf )
 {
 #if defined(_WIN32) && !defined(EFIX64) && !defined(EFI32)
-    return( ( gmtime_s( tm_buf, tt ) == 0 ) ? tm_buf : NULL );
+    return ( gmtime_s( tm_buf, tt ) == 0 ) ? tm_buf : NULL ;
 #elif !defined(PLATFORM_UTIL_USE_GMTIME)
-    return( gmtime_r( tt, tm_buf ) );
+    return gmtime_r( tt, tm_buf ) ;
 #else
     struct tm *lt;
 
 #if defined(MBEDTLS_THREADING_C)
     if( mbedtls_mutex_lock( &mbedtls_threading_gmtime_mutex ) != 0 )
-        return( NULL );
+        return NULL ;
 #endif /* MBEDTLS_THREADING_C */
 
     lt = gmtime( tt );
@@ -124,10 +124,10 @@
 
 #if defined(MBEDTLS_THREADING_C)
     if( mbedtls_mutex_unlock( &mbedtls_threading_gmtime_mutex ) != 0 )
-        return( NULL );
+        return NULL ;
 #endif /* MBEDTLS_THREADING_C */
 
-    return( ( lt == NULL ) ? NULL : tm_buf );
+    return ( lt == NULL ) ? NULL : tm_buf ;
 #endif /* _WIN32 && !EFIX64 && !EFI32 */
 }
 #endif /* MBEDTLS_HAVE_TIME_DATE && MBEDTLS_PLATFORM_GMTIME_R_ALT */