diff --git a/programs/pkey/dh_genprime.c b/programs/pkey/dh_genprime.c
index a3d574c..e0ca260 100644
--- a/programs/pkey/dh_genprime.c
+++ b/programs/pkey/dh_genprime.c
@@ -33,8 +33,8 @@
 #define polarssl_printf     printf
 #endif
 
-#if defined(POLARSSL_BIGNUM_C) && defined(POLARSSL_ENTROPY_C) &&\
-    defined(POLARSSL_FS_IO) && defined(POLARSSL_CTR_DRBG_C) &&\
+#if defined(POLARSSL_BIGNUM_C) && defined(POLARSSL_ENTROPY_C) && \
+    defined(POLARSSL_FS_IO) && defined(POLARSSL_CTR_DRBG_C) && \
     defined(POLARSSL_GENPRIME)
 #include "polarssl/bignum.h"
 #include "polarssl/entropy.h"