diff --git a/CMakeLists.txt b/CMakeLists.txt
index ab2b989..75e01d5 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -21,13 +21,7 @@ include(HunterGate)
 include(GNUInstallDirs)
 include(defaults/HunterCacheServers)
 
-# Setup Hunter.
-# Hunter is going to be initialized only if building with tests,
-# where it is needed to get dependencies.
-HunterGate(
-    URL "https://github.com/ruslo/hunter/archive/v0.20.37.tar.gz"
-    SHA1 "51886d10428c924cc21756abc17623bcf4986386"
-)
+include(HunterConfig)
 
 project(evmc)
 set(PROJECT_VERSION "0.1.0.dev0")
diff --git a/appveyor.yml b/appveyor.yml
index 4408d4b..9dbaa74 100644
--- a/appveyor.yml
+++ b/appveyor.yml
@@ -16,6 +16,8 @@ environment:
 
     - APPVEYOR_BUILD_WORKER_IMAGE: Visual Studio 2015
       GENERATOR: "Visual Studio 14 2015 Win64"
+cache:
+  - C:\.hunter\_Base\Cache -> cmake\HunterConfig.cmake
 
 before_build: |
   if not exist build mkdir build
diff --git a/cmake/HunterConfig.cmake b/cmake/HunterConfig.cmake
new file mode 100644
index 0000000..36d5712
--- /dev/null
+++ b/cmake/HunterConfig.cmake
@@ -0,0 +1,11 @@
+# EVMC: Ethereum Client-VM Connector API.
+# Copyright 2018 Pawel Bylica.
+# Licensed under the MIT License. See the LICENSE file.
+
+# Setup Hunter.
+# Hunter is going to be initialized only if building with tests,
+# where it is needed to get dependencies.
+HunterGate(
+    URL "https://github.com/ruslo/hunter/archive/v0.20.37.tar.gz"
+    SHA1 "51886d10428c924cc21756abc17623bcf4986386"
+)