diff --git a/haskell-platform.spec b/haskell-platform.spec
index 022132d..8865eed 100644
--- a/haskell-platform.spec
+++ b/haskell-platform.spec
@@ -202,6 +202,7 @@ Version:        %{stack_ver}
 Summary:        Haskell package tool
 License:        BSD
 Url:            http://haskellstack.org
+Requires:       zlib-devel
 
 %description -n stack
 Stack is a cross-platform program for developing Haskell projects.