diff --git a/CMakeLists.txt b/CMakeLists.txt
index 6aee051..a562df0 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -100,6 +100,7 @@ else()
 	
 endif(CMAKE_SYSTEM_NAME STREQUAL "Windows")
 
+set(CYTHON_FLAGS "--fast-fail")
 if(LASP_DEBUG)
     set(TRACERNAME LASPTracer)
     set(LASP_DEBUG_CYTHON=True)
@@ -111,7 +112,7 @@ if(LASP_DEBUG)
     add_definitions(-DDEBUG)
     add_definitions(-DTRACER=1)
     # This will produce html files
-    set(CYTHON_ANNOTATE ON)
+    # set(CYTHON_ANNOTATE ON)
     # Add the __FILENAME__ macro
     # set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -D__FILENAME__='\"$(subst ${CMAKE_SOURCE_DIR}/,,$(abspath $<))\"'")
 else()
diff --git a/lasp/CMakeLists.txt b/lasp/CMakeLists.txt
index 4e43bb3..8a827ad 100644
--- a/lasp/CMakeLists.txt
+++ b/lasp/CMakeLists.txt
@@ -6,10 +6,10 @@ include(UseCython)
 find_package(Numpy REQUIRED )
 
 include_directories(
-   ${PYTHON_NUMPY_INCLUDE_DIR}
-   .
-   c
- )
+    ${PYTHON_NUMPY_INCLUDE_DIR}
+    .
+    c
+    )
 add_subdirectory(c)
 add_subdirectory(device)