diff --git a/Python/random.c b/Python/random.c
index 8f3e6d6..8caaa95 100644
--- a/Python/random.c
+++ b/Python/random.c
@@ -364,7 +364,7 @@
 
 #ifdef MS_WINDOWS
     return win32_urandom((unsigned char *)buffer, size, 1);
-#elif PY_GETENTROPY
+#elif defined(PY_GETENTROPY)
     return py_getentropy(buffer, size, 0);
 #else
     return dev_urandom_python((char*)buffer, size);
@@ -411,7 +411,7 @@
     else {
 #ifdef MS_WINDOWS
         (void)win32_urandom(secret, secret_size, 0);
-#elif PY_GETENTROPY
+#elif defined(PY_GETENTROPY)
         (void)py_getentropy(secret, secret_size, 1);
 #else
         dev_urandom_noraise(secret, secret_size);
@@ -427,7 +427,7 @@
         CryptReleaseContext(hCryptProv, 0);
         hCryptProv = 0;
     }
-#elif PY_GETENTROPY
+#elif defined(PY_GETENTROPY)
     /* nothing to clean */
 #else
     dev_urandom_close();