diff --git a/cmake/OmimOptions.cmake b/cmake/OmimOptions.cmake
index d6f9df296..6c577347e 100644
--- a/cmake/OmimOptions.cmake
+++ b/cmake/OmimOptions.cmake
@@ -1,6 +1,6 @@
 set(CMAKE_BUILD_TYPE "Release" CACHE STRING "Build type")
 option(CMAKE_UNITY_BUILD "Use unity build" ON)
-set(CMAKE_UNITY_BUILD_BATCH_SIZE "50" CACHE STRING "Batch size for unity build")
+set(CMAKE_UNITY_BUILD_BATCH_SIZE "24" CACHE STRING "Batch size for unity build")
 option(USE_CCACHE "Use ccache" ON)
 option(WITH_SYSTEM_PROVIDED_3PARTY "Enable compilation with system provided dependencies" OFF)
 option(BUILD_DESIGNER "Build application as design tool" OFF)
diff --git a/docs/INSTALL_DESKTOP.md b/docs/INSTALL_DESKTOP.md
index 87a74058c..b00fa7329 100644
--- a/docs/INSTALL_DESKTOP.md
+++ b/docs/INSTALL_DESKTOP.md
@@ -162,8 +162,8 @@ tools/unix/build_omim.sh -d help
 - If you get "not enough memory" errors during builds, you may disable
   [CMake Unity Builds](https://cmake.org/cmake/help/latest/prop_tgt/UNITY_BUILD.html) by passing
   `-DCMAKE_UNITY_BUILD=OFF` option to `cmake` invocation. Or you can reduce Unity build batch size from
-  the default `50` to a lower value (`2`-`16`) by passing `-DCMAKE_UNITY_BUILD_BATCH_SIZE=8`.
-  Note that these changes may significantly increase the build time.
+  the default `24` to a lower value (`2`-`16`) by passing `-DCMAKE_UNITY_BUILD_BATCH_SIZE=8`.
+  Note that these changes may significantly increase the full build time.
 
 ### Running