diff --git a/appveyor.yml b/appveyor.yml
index 0d383f7..4a05559 100644
--- a/appveyor.yml
+++ b/appveyor.yml
@@ -1,6 +1,6 @@
 install:
   - ps: Start-FileDownload "http://slproweb.com/download/Win64OpenSSL-1_0_2c.exe"
-  - ps: Start-Process "Win64OpenSSL-1_0_2c.exe" -ArgumentList "/silent /verysilent /sp- /suppressmsgboxes" -Wait
+  - Win64OpenSSL-1_0_2c.exe /silent /verysilent /sp- /suppressmsgboxes /dir="C:\OpenSSL-Win64"
   - ps: Start-FileDownload 'https://static.rust-lang.org/dist/rust-nightly-i686-pc-windows-gnu.exe'
   - rust-nightly-i686-pc-windows-gnu.exe /VERYSILENT /NORESTART /DIR="C:\Program Files (x86)\Rust"
   - SET PATH=%PATH%;C:\Program Files (x86)\Rust\bin
@@ -11,4 +11,4 @@ install:
 build: false
 
 test_script:
-  - cargo test --verbose
+  - env OPENSSL_LIB_DIR=C:/OpenSSL-Win64 OPENSSL_INCLUDE_DIR=C:/OpenSSL-Win64/include cargo test --verbose