diff --git a/.gitignore b/.gitignore
new file mode 100644
index 0000000..5761abc
--- /dev/null
+++ b/.gitignore
@@ -0,0 +1 @@
+*.o
diff --git a/gpg.c b/gpg.c
index 287523f..b78497d 100644
--- a/gpg.c
+++ b/gpg.c
@@ -170,7 +170,11 @@ int gpgCheckSignResult(SHOWERROR_FN showerror_cb, gpgme_sign_result_t result,
         error = 1;
       }
     if (!error &&
-        result -> signatures -> hash_algo != GPGME_MD_SHA1)
+        result -> signatures -> hash_algo != GPGME_MD_SHA1 &&
+        result -> signatures -> hash_algo != GPGME_MD_SHA256 &&
+        result -> signatures -> hash_algo != GPGME_MD_SHA384 &&
+        result -> signatures -> hash_algo != GPGME_MD_SHA512
+        )
       {
         switch (result -> signatures -> hash_algo)
           {