diff --git a/mp/src/game/server/nav_file.cpp b/mp/src/game/server/nav_file.cpp
index 0f799a808..a196ecdc8 100644
--- a/mp/src/game/server/nav_file.cpp
+++ b/mp/src/game/server/nav_file.cpp
@@ -1407,18 +1407,17 @@ NavErrorType CNavMesh::Load( void )
 		}
 	}
 
-	if ( IsX360() )
+#ifdef _XBOX
+	// 360 has compressed NAVs
+	CLZMA lzma;
+	if ( lzma.IsCompressed( (unsigned char *)fileBuffer.Base() ) )
 	{
-		// 360 has compressed NAVs
-		CLZMA lzma;
-		if ( lzma.IsCompressed( (unsigned char *)fileBuffer.Base() ) )
-		{
-			int originalSize = lzma.GetActualSize( (unsigned char *)fileBuffer.Base() );
-			unsigned char *pOriginalData = new unsigned char[originalSize];
-			lzma.Uncompress( (unsigned char *)fileBuffer.Base(), pOriginalData );
-			fileBuffer.AssumeMemory( pOriginalData, originalSize, originalSize, CUtlBuffer::READ_ONLY );
-		}
+		int originalSize = lzma.GetActualSize( (unsigned char *)fileBuffer.Base() );
+		unsigned char *pOriginalData = new unsigned char[originalSize];
+		lzma.Uncompress( (unsigned char *)fileBuffer.Base(), pOriginalData );
+		fileBuffer.AssumeMemory( pOriginalData, originalSize, originalSize, CUtlBuffer::READ_ONLY );
 	}
+#endif
 
 	// check magic number
 	unsigned int magic = fileBuffer.GetUnsignedInt();