diff --git a/build/win32/vs10/gobject.vcxprojin b/build/win32/vs10/gobject.vcxprojin
index 171b3b7cd..b95bb1fde 100644
--- a/build/win32/vs10/gobject.vcxprojin
+++ b/build/win32/vs10/gobject.vcxprojin
@@ -75,7 +75,7 @@
   <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'">
     <ClCompile>
       <Optimization>Disabled</Optimization>
-      <PreprocessorDefinitions>_DEBUG;GOBJECT_COMPILATION;DLL_EXPORT;G_LOG_DOMAIN="Glib-GObject";FFI_BUILDING;%(PreprocessorDefinitions)</PreprocessorDefinitions>
+      <PreprocessorDefinitions>_DEBUG;GOBJECT_COMPILATION;DLL_EXPORT;G_LOG_DOMAIN="GLib-GObject";FFI_BUILDING;%(PreprocessorDefinitions)</PreprocessorDefinitions>
       <MinimalRebuild>true</MinimalRebuild>
       <BasicRuntimeChecks>EnableFastChecks</BasicRuntimeChecks>
       <RuntimeLibrary>MultiThreadedDebugDLL</RuntimeLibrary>
@@ -99,7 +99,7 @@
   <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Release|Win32'">
     <ClCompile>
       <WholeProgramOptimization>false</WholeProgramOptimization>
-      <PreprocessorDefinitions>GOBJECT_COMPILATION;DLL_EXPORT;G_LOG_DOMAIN="Glib-GObject";FFI_BUILDING;%(PreprocessorDefinitions)</PreprocessorDefinitions>
+      <PreprocessorDefinitions>GOBJECT_COMPILATION;DLL_EXPORT;G_LOG_DOMAIN="GLib-GObject";FFI_BUILDING;%(PreprocessorDefinitions)</PreprocessorDefinitions>
       <RuntimeLibrary>MultiThreadedDLL</RuntimeLibrary>
       <PrecompiledHeader>
       </PrecompiledHeader>
@@ -125,7 +125,7 @@
   <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Debug|x64'">
     <ClCompile>
       <Optimization>Disabled</Optimization>
-      <PreprocessorDefinitions>_DEBUG;GOBJECT_COMPILATION;DLL_EXPORT;G_LOG_DOMAIN="Glib-GObject";FFI_BUILDING;%(PreprocessorDefinitions)</PreprocessorDefinitions>
+      <PreprocessorDefinitions>_DEBUG;GOBJECT_COMPILATION;DLL_EXPORT;G_LOG_DOMAIN="GLib-GObject";FFI_BUILDING;%(PreprocessorDefinitions)</PreprocessorDefinitions>
       <MinimalRebuild>true</MinimalRebuild>
       <BasicRuntimeChecks>EnableFastChecks</BasicRuntimeChecks>
       <RuntimeLibrary>MultiThreadedDebugDLL</RuntimeLibrary>
@@ -149,7 +149,7 @@
   <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Release|x64'">
     <ClCompile>
       <WholeProgramOptimization>false</WholeProgramOptimization>
-      <PreprocessorDefinitions>GOBJECT_COMPILATION;DLL_EXPORT;G_LOG_DOMAIN="Glib-GObject";FFI_BUILDING;%(PreprocessorDefinitions)</PreprocessorDefinitions>
+      <PreprocessorDefinitions>GOBJECT_COMPILATION;DLL_EXPORT;G_LOG_DOMAIN="GLib-GObject";FFI_BUILDING;%(PreprocessorDefinitions)</PreprocessorDefinitions>
       <RuntimeLibrary>MultiThreadedDLL</RuntimeLibrary>
       <PrecompiledHeader>
       </PrecompiledHeader>
diff --git a/build/win32/vs9/gobject.vcprojin b/build/win32/vs9/gobject.vcprojin
index f8300e9b9..c52ab9742 100644
--- a/build/win32/vs9/gobject.vcprojin
+++ b/build/win32/vs9/gobject.vcprojin
@@ -28,7 +28,7 @@
 			<Tool
 				Name="VCCLCompilerTool"
 				Optimization="0"
-				PreprocessorDefinitions="_DEBUG;GOBJECT_COMPILATION;DLL_EXPORT;G_LOG_DOMAIN=\&quot;Glib-GObject\&quot;;FFI_BUILDING"
+				PreprocessorDefinitions="_DEBUG;GOBJECT_COMPILATION;DLL_EXPORT;G_LOG_DOMAIN=\&quot;GLib-GObject\&quot;;FFI_BUILDING"
 				MinimalRebuild="true"
 				BasicRuntimeChecks="3"
 				RuntimeLibrary="3"
@@ -59,7 +59,7 @@
 			<Tool
 				Name="VCCLCompilerTool"
 				WholeProgramOptimization="false"
-				PreprocessorDefinitions="GOBJECT_COMPILATION;DLL_EXPORT;G_LOG_DOMAIN=\&quot;Glib-GObject\&quot;;FFI_BUILDING"
+				PreprocessorDefinitions="GOBJECT_COMPILATION;DLL_EXPORT;G_LOG_DOMAIN=\&quot;GLib-GObject\&quot;;FFI_BUILDING"
 				RuntimeLibrary="2"
 				UsePrecompiledHeader="0"
 				WarningLevel="3"
@@ -90,7 +90,7 @@
 			<Tool
 				Name="VCCLCompilerTool"
 				Optimization="0"
-				PreprocessorDefinitions="_DEBUG;GOBJECT_COMPILATION;DLL_EXPORT;G_LOG_DOMAIN=\&quot;Glib-GObject\&quot;;FFI_BUILDING"
+				PreprocessorDefinitions="_DEBUG;GOBJECT_COMPILATION;DLL_EXPORT;G_LOG_DOMAIN=\&quot;GLib-GObject\&quot;;FFI_BUILDING"
 				MinimalRebuild="true"
 				BasicRuntimeChecks="3"
 				RuntimeLibrary="3"
@@ -121,7 +121,7 @@
 			<Tool
 				Name="VCCLCompilerTool"
 				WholeProgramOptimization="false"
-				PreprocessorDefinitions="GOBJECT_COMPILATION;DLL_EXPORT;G_LOG_DOMAIN=\&quot;Glib-GObject\&quot;;FFI_BUILDING"
+				PreprocessorDefinitions="GOBJECT_COMPILATION;DLL_EXPORT;G_LOG_DOMAIN=\&quot;GLib-GObject\&quot;;FFI_BUILDING"
 				RuntimeLibrary="2"
 				UsePrecompiledHeader="0"
 				WarningLevel="3"