diff --git a/src/crypto.h b/src/crypto.h
index 503a825b..b5d6e0e6 100644
--- a/src/crypto.h
+++ b/src/crypto.h
@@ -63,6 +63,11 @@
 #define LIBSSH2_MD5 0
 #endif
 
+#ifdef LIBSSH2_NO_DSA
+#undef LIBSSH2_DSA
+#define LIBSSH2_DSA 0
+#endif
+
 #define LIBSSH2_ED25519_KEY_LEN 32
 #define LIBSSH2_ED25519_PRIVATE_KEY_LEN 64
 #define LIBSSH2_ED25519_SIG_LEN 64