diff --git a/src/ide/vc8/bullet_lib.vcproj b/src/ide/vc8/bullet_lib.vcproj
index 790333629..bf96c0239 100755
--- a/src/ide/vc8/bullet_lib.vcproj
+++ b/src/ide/vc8/bullet_lib.vcproj
@@ -42,7 +42,7 @@
 				Name="VCCLCompilerTool"
 				Optimization="0"
 				AdditionalIncludeDirectories="..\..\bullet\src;"$(GLUT_PATH)\include""
-				PreprocessorDefinitions="WIN32;_DEBUG"
+				PreprocessorDefinitions="WIN32;BT_NO_PROFILE"
 				MinimalRebuild="true"
 				BasicRuntimeChecks="3"
 				RuntimeLibrary="3"
@@ -107,7 +107,7 @@
 				Name="VCCLCompilerTool"
 				WholeProgramOptimization="false"
 				AdditionalIncludeDirectories="..\..\bullet\src;"$(GLUT_PATH)\include""
-				PreprocessorDefinitions="WIN32;NDEBUG"
+				PreprocessorDefinitions="WIN32;NDEBUG;BT_NO_PROFILE"
 				MinimalRebuild="true"
 				RuntimeLibrary="0"
 				UsePrecompiledHeader="0"