diff --git a/docs/msbuild/project-element-msbuild.md b/docs/msbuild/project-element-msbuild.md
index 2d1fc00ad5b..39ff2e8c8f0 100644
--- a/docs/msbuild/project-element-msbuild.md
+++ b/docs/msbuild/project-element-msbuild.md
@@ -32,7 +32,7 @@ Required root element of an MSBuild project file.
 <Project InitialTargets="TargetA;TargetB"
          DefaultTargets="TargetC;TargetD"
          TreatAsLocalProperty="PropertyA;PropertyB"
-         ToolsVersion=<version number>
+         ToolsVersion="<version number>"
          Sdk="name[/version]"
          xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
     <Sdk... />