diff --git a/src/shogun/CMakeLists.txt b/src/shogun/CMakeLists.txt
index 4a14ffc35b9..97ccab71d8f 100644
--- a/src/shogun/CMakeLists.txt
+++ b/src/shogun/CMakeLists.txt
@@ -435,18 +435,6 @@ SHOGUN_DEPENDENCIES(
   SCOPE PRIVATE
   CONFIG_FLAG HAVE_ARPREC)
 
-###### checks for random
-CHECK_FUNCTION_EXISTS(arc4random HAVE_ARC4RANDOM)
-IF(NOT HAVE_ARC4RANDOM)
-    # assume that /dev/random is non-blocking if /dev/urandom does not exist
-    if(EXISTS /dev/urandom)
-      set(DEV_RANDOM "/dev/urandom" CACHE INTERNAL "" FORCE)
-    elseif( EXISTS /dev/random )
-      set(DEV_RANDOM "/dev/random" CACHE INTERNAL "" FORCE)
-    endif()
-ENDIF()
-
-
 ################## linker optimisations
 OPTION(INCREMENTAL_LINKING "Enable incremantal linking")
 SET(INCREMENTAL_LINKING_DIR ${CMAKE_BINARY_DIR}/linker_cache
diff --git a/src/shogun/lib/config.h.in b/src/shogun/lib/config.h.in
index 2cf9d91a036..2027dbb58c8 100644
--- a/src/shogun/lib/config.h.in
+++ b/src/shogun/lib/config.h.in
@@ -135,8 +135,4 @@
 /* does the compiler support abi::__cxa_demangle */
 #cmakedefine HAVE_CXA_DEMANGLE 1
 
-/* random related defines */
-#cmakedefine HAVE_ARC4RANDOM 1
-#cmakedefine DEV_RANDOM "@DEV_RANDOM@"
-
 #endif /* __SHOGUN_LIB_CONFIG_H__ */