diff --git a/cmake/PlatformDefaults.cmake b/cmake/PlatformDefaults.cmake
index 3dc673fa0..01050c8df 100644
--- a/cmake/PlatformDefaults.cmake
+++ b/cmake/PlatformDefaults.cmake
@@ -4,17 +4,17 @@ if((CMAKE_SYSTEM_NAME MATCHES "WindowsStore") AND (CMAKE_SYSTEM_VERSION MATCHES
 	add_definitions("-D_UWP")
     set(CMAKE_WINDOWS_VERSION "WIN10" CACHE STRING "platform default")
 endif()
-# Enable 64bit file support on linux and FreeBSD.
+
 if("${CMAKE_SYSTEM_NAME}" MATCHES "Linux")
 	add_definitions("-D_FILE_OFFSET_BITS=64")
+    add_definitions("-DWINPR_TIMEZONE_FILE=\"/etc/timezone\"")
 endif()
 
-if("${CMAKE_SYSTEM_NAME}" MATCHES FREEBSD)
+if("${CMAKE_SYSTEM_NAME}" MATCHES "FreeBSD")
 	add_definitions("-D_FILE_OFFSET_BITS=64")
+    add_definitions("-DWINPR_TIMEZONE_FILE=\"/var/db/zoneinfo\"")
 endif()
 
-# Use Standard conforming getpwnam_r() on Solaris.
-# Use Standard conforming getpwnam_r() on Solaris.
 if("${CMAKE_SYSTEM_NAME}" MATCHES "SunOS")
 	add_definitions("-D_POSIX_PTHREAD_SEMANTICS")
     list(APPEND CMAKE_STANDARD_LIBRARIES rt)
diff --git a/winpr/libwinpr/timezone/timezone.c b/winpr/libwinpr/timezone/timezone.c
index f6d987499..6ca3e5443 100644
--- a/winpr/libwinpr/timezone/timezone.c
+++ b/winpr/libwinpr/timezone/timezone.c
@@ -247,10 +247,11 @@ static char* winpr_get_unix_timezone_identifier_from_file(void)
 #else
 	FILE* fp = NULL;
 	char* tzid = NULL;
-#if defined(__FreeBSD__) || defined(__OpenBSD__)
-	fp = winpr_fopen("/var/db/zoneinfo", "r");
+#if !defined(WINPR_TIMEZONE_FILE)
+#error \
+    "Please define WINPR_TIMEZONE_FILE with the path to your timezone file (e.g. /etc/timezone or similar)"
 #else
-	fp = winpr_fopen("/etc/timezone", "r");
+	fp = winpr_fopen(WINPR_TIMEZONE_FILE, "r");
 #endif
 
 	if (NULL == fp)