diff --git a/src/crypto.h b/src/crypto.h
index f71f532c..39924f77 100644
--- a/src/crypto.h
+++ b/src/crypto.h
@@ -36,8 +36,8 @@
 #define CRYPTO_H
 
 #if !defined (SQLCIPHER_CRYPTO_CC) \
-   && !defined(SQLCIPHER_CRYPTO_LIBTOMCRYPT) \
-   && !defined(SQLCIPHER_CRYPTO_OPENSSL)
+   && !defined (SQLCIPHER_CRYPTO_LIBTOMCRYPT) \
+   && !defined (SQLCIPHER_CRYPTO_OPENSSL)
 #define SQLCIPHER_CRYPTO_OPENSSL
 #endif
 
diff --git a/src/crypto_impl.c b/src/crypto_impl.c
index a58927c7..0b2812dc 100644
--- a/src/crypto_impl.c
+++ b/src/crypto_impl.c
@@ -95,10 +95,10 @@ void sqlcipher_activate() {
 #if defined (SQLCIPHER_CRYPTO_CC)
   extern int sqlcipher_cc_setup(sqlcipher_provider *p);
   sqlcipher_cc_setup(p);
-#elif SQLCIPHER_CRYPTO_LIBTOMCRYPT
+#elif defined (SQLCIPHER_CRYPTO_LIBTOMCRYPT)
   extern int sqlcipher_ltc_setup(sqlcipher_provider *p);
   sqlcipher_ltc_setup(p);
-#elif SQLCIPHER_CRYPTO_OPENSSL
+#elif defined (SQLCIPHER_CRYPTO_OPENSSL)
   extern int sqlcipher_openssl_setup(sqlcipher_provider *p);
   sqlcipher_openssl_setup(p);
 #else