diff --git a/libjp3dvm/CMakeLists.txt b/libjp3dvm/CMakeLists.txt
index e3fa1787..3f1e34b6 100644
--- a/libjp3dvm/CMakeLists.txt
+++ b/libjp3dvm/CMakeLists.txt
@@ -1,3 +1,4 @@
+ADD_DEFINITIONS(-O3)
 INCLUDE_REGULAR_EXPRESSION("^.*$")
 # Defines the source code for the library
 SET(JP3DVM_SRCS