diff --git a/utils/build.ps1 b/utils/build.ps1
index b76933e98a8ef..6053c5ec73d68 100644
--- a/utils/build.ps1
+++ b/utils/build.ps1
@@ -2439,6 +2439,15 @@ function Test-Format {
   }
 }
 
+function Build-LMDB($Arch) {
+  Build-CMakeProject `
+    -Src $SourceCache\swift-lmdb `
+    -Bin (Get-HostProjectBinaryCache LMDB) `
+    -Arch $Arch `
+    -UseMSVCCompilers C `
+    -BuildTargets default
+}
+
 function Build-IndexStoreDB($Arch) {
   $SDKInstallRoot = (Get-HostSwiftSDK);
 
@@ -2454,6 +2463,7 @@ function Build-IndexStoreDB($Arch) {
       BUILD_SHARED_LIBS = "NO";
       CMAKE_C_FLAGS = @("-I$SDKInstallRoot\usr\include", "-I$SDKInstallRoot\usr\include\Block");
       CMAKE_CXX_FLAGS = @("-I$SDKInstallRoot\usr\include", "-I$SDKInstallRoot\usr\include\Block");
+      LMDB_DIR = (Get-HostProjectCMakeModules LMDB);
     }
 }
 
@@ -2837,6 +2847,7 @@ if (-not $SkipBuild) {
   Invoke-BuildStep Build-PackageManager $HostArch
   Invoke-BuildStep Build-Markdown $HostArch
   Invoke-BuildStep Build-Format $HostArch
+  Invoke-BuildStep Build-LMDB $HostArch
   Invoke-BuildStep Build-IndexStoreDB $HostArch
   Invoke-BuildStep Build-SourceKitLSP $HostArch
 }