diff --git a/shedskin.spec b/shedskin.spec
index 67a455b..ad7ae2b 100644
--- a/shedskin.spec
+++ b/shedskin.spec
@@ -21,6 +21,11 @@ BuildArch:      noarch
 BuildRequires:  python2-devel
 BuildRequires:  python-setuptools
 
+# Required for running the testsuite:
+BuildRequires:  gc-devel
+BuildRequires:  glibc-headers
+BuildRequires:  pcre-devel
+
 # Require all devel packages for making a binary
 # <gc/gc_allocator.h>
 Requires:       gc-devel