diff --git a/rust2rpm/metadata.py b/rust2rpm/metadata.py
index a630ce9..db52c77 100644
--- a/rust2rpm/metadata.py
+++ b/rust2rpm/metadata.py
@@ -128,7 +128,7 @@ class CargoSemVer:
         if kind == CargoSemVer.KIND_ANY:
             normalized.append((CargoSemVer.KIND_GTE,
                                CargoSemVer.coerce(version)))
-            if version.major:
+            if version.major is not None:
                 if version.minor is not None:
                     upper_version = CargoSemVer.next_minor(version)
                 else:
diff --git a/test.py b/test.py
index 62acb4f..29ff704 100644
--- a/test.py
+++ b/test.py
@@ -29,6 +29,14 @@ from rust2rpm.metadata import Version
      "(crate(test) >= 1.0.0 with crate(test) < 2.0.0~)"),
     ("*",
      "crate(test) >= 0.0.0"),
+    ("0.*",
+     "(crate(test) >= 0.0.0 with crate(test) < 1.0.0~)"),
+    ("0.0.*",
+     "(crate(test) >= 0.0.0 with crate(test) < 0.1.0~)"),
+    ("0.1.*",
+     "(crate(test) >= 0.1.0 with crate(test) < 0.2.0~)"),
+    ("0.*.*",
+     "(crate(test) >= 0.0.0 with crate(test) < 1.0.0~)"),
     ("1.*",
      "(crate(test) >= 1.0.0 with crate(test) < 2.0.0~)"),
     ("1.2.*",