diff --git a/examples/CMakeLists.txt b/examples/CMakeLists.txt
index 055f4ef0d35..34ab9941516 100644
--- a/examples/CMakeLists.txt
+++ b/examples/CMakeLists.txt
@@ -1,5 +1,7 @@
 project( Examples )
 
+include_directories(${PROTOBUF_INCLUDE_DIR})
+
 file(GLOB_RECURSE EXAMPLES_SOURCES ${CMAKE_CURRENT_SOURCE_DIR}/*.cpp)
 
 foreach(source ${EXAMPLES_SOURCES})
diff --git a/python/CMakeLists.txt b/python/CMakeLists.txt
index 6470517d213..8a444f1ef9d 100644
--- a/python/CMakeLists.txt
+++ b/python/CMakeLists.txt
@@ -34,7 +34,7 @@ find_package(Boost 1.46 COMPONENTS python REQUIRED)
 
 
 include_directories(${PYTHON_INCLUDE_DIRS} ${NUMPY_INCLUDE_DIRS}
-    ${Boost_INCLUDE_DIRS})
+    ${Boost_INCLUDE_DIRS} ${PROTOBUF_INCLUDE_DIR})
 
 file(GLOB_RECURSE Python_SOURCES ${CMAKE_CURRENT_SOURCE_DIR}/*.cpp)
 
diff --git a/src/caffe/CMakeLists.txt b/src/caffe/CMakeLists.txt
index dda072688f8..98de8fba1ba 100644
--- a/src/caffe/CMakeLists.txt
+++ b/src/caffe/CMakeLists.txt
@@ -1,7 +1,7 @@
 project( CaffeSrc )
 
-
 add_subdirectory(proto)
+include_directories(${PROTOBUF_INCLUDE_DIR})
 
 #    Recursively find source files
 ##    test sources
diff --git a/tools/CMakeLists.txt b/tools/CMakeLists.txt
index 110f368b2c8..c5b531f92d9 100644
--- a/tools/CMakeLists.txt
+++ b/tools/CMakeLists.txt
@@ -1,5 +1,7 @@
 project( Tools )
 
+include_directories(${PROTOBUF_INCLUDE_DIR})
+
 #    Find all source files
 file(GLOB_RECURSE TOOLS_SOURCES ${CMAKE_CURRENT_SOURCE_DIR}/*.cpp)