diff --git a/library/ecp_curves.c b/library/ecp_curves.c
index a1aab5deb..962d5af9b 100644
--- a/library/ecp_curves.c
+++ b/library/ecp_curves.c
@@ -1001,7 +1001,7 @@ static inline void sub32( uint32_t *dst, uint32_t src, signed char *carry )
 #define SUB( j )    sub32( &cur, A( j ), &c );
 
 #define ciL    (sizeof(mbedtls_mpi_uint))         /* chars in limb  */
-#define biL    (ciL << 3)               /* bits  in limb  */
+#define biL    (ciL << 3)                         /* bits  in limb  */
 
 /*
  * Helpers for the main 'loop'