diff --git a/mixology/version_solver.py b/mixology/version_solver.py
index bb56383..26a637b 100644
--- a/mixology/version_solver.py
+++ b/mixology/version_solver.py
@@ -72,12 +72,8 @@ def solve(self):  # type: () -> SolverResult
 
             i += 1
 
-        logger.info("Version solving took {:.3f} seconds.\n")
-        logger.info(
-            "Tried {} solutions.".format(
-                time.time() - start, self._solution.attempted_solutions
-            )
-        )
+        logger.info("Version solving took {:.3f} seconds.".format(time.time() - start))
+        logger.info("Tried {} solutions.".format(self._solution.attempted_solutions))
 
         return SolverResult(
             self._solution.decisions, self._solution.attempted_solutions
diff --git a/tests/package_source.py b/tests/package_source.py
index 61f58ba..edf81b6 100644
--- a/tests/package_source.py
+++ b/tests/package_source.py
@@ -100,6 +100,6 @@ def convert_dependency(self, dependency):  # type: (Dependency) -> Constraint
                 )
                 for range in dependency.constraint.ranges
             ]
-            constraint = Union.of(ranges)
+            constraint = Union.of(*ranges)
 
         return Constraint(dependency.name, constraint)