diff --git a/CMakeLists.txt b/CMakeLists.txt
index 3c1d8e92d..d9396937e 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -96,7 +96,7 @@ endif()
 # Set compiler specific flags
 #--------------------------------------------------------------------
 if (UNIX)
-    add_definitions(-Wall)
+    add_definitions(-Wall -fPIC)
 
     if (BUILD_SHARED_LIBS)
         add_definitions(-fvisibility=hidden)