diff --git a/cervisia/CMakeLists.txt b/cervisia/CMakeLists.txt
index 2a0b4523..8dc6e248 100644
--- a/cervisia/CMakeLists.txt
+++ b/cervisia/CMakeLists.txt
@@ -14,7 +14,7 @@ project( cervisia )
 add_subdirectory( cvsservice )
 add_subdirectory( pics )
 
-add_definitions( -D_BSD_SOURCE )
+add_definitions( -D_DEFAULT_SOURCE )
 
 include_directories(
   ${CMAKE_CURRENT_BINARY_DIR}
diff --git a/cervisia/Makefile.am b/cervisia/Makefile.am
index c0d067f8..15322c5a 100644
--- a/cervisia/Makefile.am
+++ b/cervisia/Makefile.am
@@ -1,5 +1,5 @@
 CERVISIA_VERSION = 2.4.10
-INCLUDES = -I./cvsservice -D_BSD_SOURCE $(all_includes)
+INCLUDES = -I./cvsservice -D_DEFAULT_SOURCE $(all_includes)
 
 SUBDIRS = cvsservice . pics