diff --git a/CMakeLists.txt b/CMakeLists.txt
index 1cdf617d3..3e6c18d91 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -247,7 +247,7 @@ IF( UNIX )
   IF( ${OPERATING_SYSTEM} MATCHES "Android")
   ELSE()
     IF ( CMAKE_SIZEOF_VOID_P EQUAL 4) # only necessary for 32-bit linux
-      #ADD_DEFINITIONS(-D_FILE_OFFSET_BITS=64 )
+      ADD_DEFINITIONS(-D_FILE_OFFSET_BITS=64 )
     ENDIF()
   ENDIF()
 ENDIF()