diff --git a/CMakeLists.txt b/CMakeLists.txt
index d3e23903..43149c13 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -37,7 +37,6 @@ include(CheckIncludeFiles)
 include(CheckFunctionExists)
 check_include_files(alloca.h HAVE_ALLOCA_H)
 check_include_files("sys/ipc.h;sys/shm.h" HAVE_SHMGET)
-check_function_exists(fork HAVE_FORK)
 check_include_files(dlfcn.h HAVE_DLFCN_H)
 check_function_exists(erf HAVE_ERF)
 check_function_exists(getloadavg HAVE_GETLOADAVG)
diff --git a/cmake/config.h.in b/cmake/config.h.in
index 365a361c..2a72e18a 100644
--- a/cmake/config.h.in
+++ b/cmake/config.h.in
@@ -2,9 +2,6 @@
 
 #define PACKAGE_VERSION "@PROJECT_VERSION@"
 
-// define to 1 if you have fork and it should be used 
-#cmakedefine HAVE_FORK 1
-
 // define to 1 if you have <alloca.h> and it should be used 
 #cmakedefine HAVE_ALLOCA_H 1