diff --git a/lib/tls/CMakeLists.txt b/lib/tls/CMakeLists.txt
index 559be9abb..a2b78c252 100644
--- a/lib/tls/CMakeLists.txt
+++ b/lib/tls/CMakeLists.txt
@@ -311,7 +311,7 @@ endif()
 if (UNIX AND NOT (${CMAKE_SYSTEM_NAME} MATCHES "QNX"))
 	set(CMAKE_REQUIRED_LIBRARIES ${CMAKE_REQUIRED_LIBRARIES} ${CMAKE_DL_LIBS})
 endif()
-if ((CMAKE_COMPILER_IS_GNUCC OR CMAKE_COMPILER_IS_GNUCXX) AND NOT (${CMAKE_SYSTEM_NAME} MATCHES "QNX"))
+if ((CMAKE_COMPILER_IS_GNUCC OR CMAKE_COMPILER_IS_GNUCXX) AND NOT ((${CMAKE_SYSTEM_NAME} MATCHES "QNX") OR PC_OPENSSL_FOUND))
 	set(CMAKE_REQUIRED_LIBRARIES ${CMAKE_REQUIRED_LIBRARIES} pthread)
 endif()