diff --git a/src/spectator/expectations/value_expectation_partial.cr b/src/spectator/expectations/value_expectation_partial.cr
index ddbee9a..09bf196 100644
--- a/src/spectator/expectations/value_expectation_partial.cr
+++ b/src/spectator/expectations/value_expectation_partial.cr
@@ -24,13 +24,13 @@ module Spectator::Expectations
     # Asserts that the `#actual` value matches some criteria.
     # The criteria is defined by the matcher passed to this method.
     def to(matcher : Matchers::ValueMatcher(ExpectedType)) : Nil forall ExpectedType
-      report(matcher.eval(self))
+      report(eval(matcher))
     end
 
     # Asserts that the `#actual` value *does not* match some criteria.
     # This is effectively the opposite of `#to`.
     def to_not(matcher : Matchers::ValueMatcher(ExpectedType)) : Nil forall ExpectedType
-      report(matcher.eval(self, true))
+      report(eval(matcher, true))
     end
 
     # ditto
@@ -38,5 +38,11 @@ module Spectator::Expectations
     def not_to(matcher : Matchers::ValueMatcher(ExpectedType)) : Nil forall ExpectedType
       to_not(matcher)
     end
+
+    # Evaluates the expectation and returns it.
+    private def eval(matcher : Matchers::ValueMatcher(ExpectedType), negated = false) forall ExpectedType
+      matched = matcher.match?(self)
+      ValueExpectation.new(matched, negated, self, matcher)
+    end
   end
 end
diff --git a/src/spectator/matchers/value_matcher.cr b/src/spectator/matchers/value_matcher.cr
index 3073e53..f1c8785 100644
--- a/src/spectator/matchers/value_matcher.cr
+++ b/src/spectator/matchers/value_matcher.cr
@@ -24,13 +24,6 @@ module Spectator::Matchers
       super(@expected.to_s)
     end
 
-    # Determines whether the matcher is satisfied with the value given to it.
-    # An `Expectation` is returned containing all match information.
-    def eval(partial : ValueExpectationPartial(ActualType), negated = false) : Expectation forall ActualType
-      matched = match?(partial)
-      ValueExpectation.new(matched, negated, partial, self)
-    end
-
     # Determines whether the matcher is satisfied with the value given to it.
     # True is returned if the matcher is satisfied, false otherwise.
     abstract def match?(partial : ValueExpectationPartial(ActualType)) : Bool forall ActualType