diff --git a/CMakeLists.txt b/CMakeLists.txt
index 9022ea306..407b1a221 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -224,6 +224,9 @@ IF(OpenSSL_FOUND AND MBEDTLS_FOUND)
 		SET(TLS_LIBRARY_LIBS ${OPENSSL_LIBRARIES})
 		SET(TLS_LIBRARY_INCLUDE ${OPENSSL_INCLUDE_DIR})
 		ADD_DEFINITIONS(-DEQEMU_USE_OPENSSL)
+		IF(${OPENSSL_VERSION} VERSION_GREATER_EQUAL "1.1.1")
+			ADD_DEFINITIONS(-DCPPHTTPLIB_OPENSSL_SUPPORT)
+		ENDIF()
 	ELSEIF(TLS_LIBRARY_SELECTION STREQUAL "mbedTLS")
 		SET(TLS_LIBRARY_TYPE " mbedTLS")
 		SET(TLS_LIBRARY_ENABLED ON)