diff --git a/.travis.yml b/.travis.yml
index 6f915aa37..e19a79f7b 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -1,9 +1,10 @@
 language: cpp
-
 os:
     - linux
     - osx
-
+env:
+    - BUILD_SHARED_LIBS=ON
+    - BUILD_SHARED_LIBS=OFF
 sudo: false
 addons:
     apt:
@@ -12,5 +13,5 @@ addons:
         packages:
             - cmake
 script:
-    - cmake .
+    - cmake -DBUILD_SHARED_LIBS=${BUILD_SHARED_LIBS} .
     - cmake --build .
diff --git a/appveyor.yml b/appveyor.yml
index e8b191f11..d65f58816 100644
--- a/appveyor.yml
+++ b/appveyor.yml
@@ -1,3 +1,7 @@
+environment:
+    matrix:
+        - BUILD_SHARED_LIBS: ON
+        - BUILD_SHARED_LIBS: OFF
 build_script:
-    - cmake .
+    - cmake -DBUILD_SHARED_LIBS=%BUILD_SHARED_LIBS% .
     - cmake --build .