diff --git a/rubygem-webmock.spec b/rubygem-webmock.spec
index 9bc970f..2116a8d 100644
--- a/rubygem-webmock.spec
+++ b/rubygem-webmock.spec
@@ -23,6 +23,7 @@ BuildRequires: rubygem(rack)
 BuildRequires: rubygem(rspec)
 BuildRequires: rubygem(test-unit)
 BuildRequires: rubygem(typhoeus)
+BuildRequires: rubygem(webrick)
 BuildArch: noarch
 
 %description