diff --git a/CMakeLists.txt b/CMakeLists.txt
index 35e25f1c..9bdf7851 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -53,10 +53,14 @@ option(MemoryOnly "MemoryOnly" OFF)
 option(NoThreading "NoThreading" OFF)
 option(ExceptionsDisabled "ExceptionsDisabled" OFF)
 
-if (32bit AND NOT MSVC AND NOT IS_ARM)
+if (32bit AND NOT IS_ARM)
 	message("-- 32 bit compilation")
-	set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -m32")
-	set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -m32")
+	if (NOT MSVC)
+		set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -m32")
+		set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -m32")
+	else()
+		set(CMAKE_VS_PLATFORM_NAME "Win32")
+	endif()
 endif()
 
 if (NOT MSVC AND NOT APPLE)
diff --git a/ci/setup-environment.ps1 b/ci/setup-environment.ps1
index b1b7031a..5e90b3bd 100644
--- a/ci/setup-environment.ps1
+++ b/ci/setup-environment.ps1
@@ -12,3 +12,10 @@ if ($BuildMethod -eq "msbuild") {
     ./environments/setup-msbuild.ps1
 
 }
+
+if ($IsLinux) {
+
+    # Install multilib, as this may be required.
+    sudo apt-get install -y gcc-multilib
+
+}