diff --git a/CMakeLists.txt b/CMakeLists.txt
index 11fbf30..cd1d378 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -1,8 +1,6 @@
 cmake_minimum_required(VERSION 3.0 FATAL_ERROR)
 project(i3ipc++)
 
-string(TIMESTAMP I3IPCppBUILD_DATETIME "%Y-%m-%d %H:%M:%S")
-
 option(I3IPCpp_WITH_TESTS "Build unit tests executables" OFF)
 option(I3IPCpp_BUILD_EXAMPLES "Build example executables" OFF)
 
@@ -60,10 +58,6 @@ target_compile_options(i3ipc++
 	PRIVATE -std=c++17 -Wall -Wextra -Wno-unused-parameter
 )
 
-target_compile_definitions(i3ipc++
-	PRIVATE I3IPC_BUILD_DATETIME="${I3IPCppBUILD_DATETIME}"
-)
-
 if (CMAKE_BUILD_TYPE STREQUAL "DEBUG")
 	target_compile_options(i3ipc++
 		PUBLIC -g3
diff --git a/src/ipc.cpp b/src/ipc.cpp
index afd0aca..3da4e0c 100644
--- a/src/ipc.cpp
+++ b/src/ipc.cpp
@@ -661,7 +661,7 @@ const version_t&  get_version() {
 #define I3IPC_VERSION_MINOR  5
 #define I3IPC_VERSION_PATCH  0
 	static version_t  version = {
-		.human_readable = auss_t() << I3IPC_VERSION_MAJOR << '.' << I3IPC_VERSION_MINOR << '.' << I3IPC_VERSION_PATCH  << " (built on " << I3IPC_BUILD_DATETIME << ")",
+		.human_readable = auss_t() << I3IPC_VERSION_MAJOR << '.' << I3IPC_VERSION_MINOR << '.' << I3IPC_VERSION_PATCH,
 		.loaded_config_file_name = std::string(),
 		.major = I3IPC_VERSION_MAJOR,
 		.minor = I3IPC_VERSION_MINOR,