diff --git a/modules/vstudio/tests/cs2005/test_compiler_props.lua b/modules/vstudio/tests/cs2005/test_compiler_props.lua
index d32b721d..67cf906f 100644
--- a/modules/vstudio/tests/cs2005/test_compiler_props.lua
+++ b/modules/vstudio/tests/cs2005/test_compiler_props.lua
@@ -39,7 +39,6 @@
 		]]
 	end
 
-
 --
 -- Check handling of the Unsafe flag.
 --
@@ -55,6 +54,17 @@
 		]]
 	end
 
+	function suite.allowUnsafeBlocks_onUnsafeFlagNonConfigOnNetcore()
+		dotnetframework "netcoreapp3.1"
+		clr "Unsafe"
+		prepare()
+		test.capture [[
+		<DefineConstants></DefineConstants>
+		<ErrorReport>prompt</ErrorReport>
+		<WarningLevel>4</WarningLevel>
+		]]
+	end
+
 
 --
 -- Check handling of FatalWarnings flag.
diff --git a/modules/vstudio/tests/cs2005/test_netcore.lua b/modules/vstudio/tests/cs2005/test_netcore.lua
index cfa138a1..13c0c53c 100644
--- a/modules/vstudio/tests/cs2005/test_netcore.lua
+++ b/modules/vstudio/tests/cs2005/test_netcore.lua
@@ -7,6 +7,7 @@
 local p = premake
 local suite = test.declare("vstudio_cs2005_netcore_prj")
 local dn2005 = p.vstudio.dotnetbase
+local cs2005 = p.vstudio.cs2005
 local project = p.project
 
 
@@ -36,6 +37,13 @@ local function prepareNetcore()
     dn2005.projectElement(prj)
 end
 
+local function prepareProjectProperties()
+    local localProj = test.getproject(wks, 1)
+
+    dn2005.prepare(cs2005)
+    dn2005.projectProperties(localProj)
+end
+
 function suite.targetFrameworkProperty_framework()
     dotnetframework "4.7.2"
     targetFrameworkPrepare()
@@ -101,3 +109,18 @@ function suite.project_element_framework()
 <Project DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
     ]]
 end
+
+function suite.allowUnsafeProperty_core()
+    dotnetframework "netcoreapp2.2"
+    clr "Unsafe"
+    prepareProjectProperties()
+    test.capture [[
+	<PropertyGroup>
+		<OutputType>Exe</OutputType>
+		<AppDesignerFolder>Properties</AppDesignerFolder>
+		<TargetFramework>netcoreapp2.2</TargetFramework>
+		<AllowUnsafeBlocks>true</AllowUnsafeBlocks>
+		<EnableDefaultCompileItems>false</EnableDefaultCompileItems>
+	</PropertyGroup>
+    ]]
+end
diff --git a/modules/vstudio/vs2005_csproj.lua b/modules/vstudio/vs2005_csproj.lua
index 186cde45..83a68163 100644
--- a/modules/vstudio/vs2005_csproj.lua
+++ b/modules/vstudio/vs2005_csproj.lua
@@ -47,6 +47,7 @@
 				dotnetbase.rootNamespace,
 				dotnetbase.assemblyName,
 				dotnetbase.netcore.targetFramework,
+				dotnetbase.allowUnsafeBlocks,
 				dotnetbase.fileAlignment,
 				dotnetbase.bindingRedirects,
 				dotnetbase.netcore.useWpf,
diff --git a/modules/vstudio/vs2005_dotnetbase.lua b/modules/vstudio/vs2005_dotnetbase.lua
index f14d3065..efadb2fe 100644
--- a/modules/vstudio/vs2005_dotnetbase.lua
+++ b/modules/vstudio/vs2005_dotnetbase.lua
@@ -252,8 +252,8 @@
 		_p(2,'<ErrorReport>prompt</ErrorReport>')
 		_p(2,'<WarningLevel>4</WarningLevel>')
 
-		if cfg.clr == "Unsafe" then
-			_p(2,'<AllowUnsafeBlocks>true</AllowUnsafeBlocks>')
+		if not dotnetbase.isNewFormatProject(cfg) then
+			dotnetbase.allowUnsafeBlocks(cfg)
 		end
 
 		if cfg.flags.FatalCompileWarnings then
@@ -772,4 +772,10 @@
 		if cfg.flags.WPF then
 			_p(2,'<UseWpf>true</UseWpf>')
 		end
+	end
+
+	function dotnetbase.allowUnsafeBlocks(cfg)
+		if cfg.clr == "Unsafe" then
+			_p(2,'<AllowUnsafeBlocks>true</AllowUnsafeBlocks>')
+		end
 	end
\ No newline at end of file