diff --git a/CMakeLists.txt b/CMakeLists.txt
index f9e3b3a..60a5cf9 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -18,7 +18,6 @@ set(SOURCE
 		src/verify.c
 )
 
-set(USE_OPENSSL OFF)
 if(USE_OPENSSL)
 	add_definitions(-DUSE_OPENSSL)
 	set(SOURCE ${SOURCE} src/sha512_openssl.c)
@@ -51,4 +50,4 @@ INSTALL(DIRECTORY include/ DESTINATION include/ed25519)
 INSTALL(TARGETS ed25519
 		LIBRARY DESTINATION lib
 		ARCHIVE DESTINATION lib
-)
\ No newline at end of file
+)