diff --git a/src/marten/db/field/base.cr b/src/marten/db/field/base.cr
index d4942ecf..20461ac6 100644
--- a/src/marten/db/field/base.cr
+++ b/src/marten/db/field/base.cr
@@ -86,8 +86,7 @@ module Marten
         def perform_validation(record : Model)
           value = record.get_field_value(id)
 
-          validate_null(record, value)
-          validate_blank(record, value)
+          validate_presence(record, value)
 
           validate(record, value)
         end
@@ -144,14 +143,10 @@ module Marten
         def validate(record, value)
         end
 
-        protected def validate_null(record : Model, value)
+        protected def validate_presence(record : Model, value)
           if value.nil? && !@null
             record.errors.add(id, null_error_message(record), type: :null)
-          end
-        end
-
-        protected def validate_blank(record : Model, value)
-          if empty_value?(value) && !@blank
+          elsif empty_value?(value) && !@blank
             record.errors.add(id, blank_error_message(record), type: :blank)
           end
         end
diff --git a/src/marten/db/field/slug.cr b/src/marten/db/field/slug.cr
index 915436ef..a1f84f6c 100644
--- a/src/marten/db/field/slug.cr
+++ b/src/marten/db/field/slug.cr
@@ -41,11 +41,7 @@ module Marten
           end
         end
 
-        protected def validate_null(record : Model, value)
-          super if slugify.nil?
-        end
-
-        protected def validate_blank(record : Model, value)
+        protected def validate_presence(record : Model, value)
           super if slugify.nil?
         end