diff --git a/recipes/boost/all/conanfile.py b/recipes/boost/all/conanfile.py
index b242be135e..b0ff61c65b 100644
--- a/recipes/boost/all/conanfile.py
+++ b/recipes/boost/all/conanfile.py
@@ -879,7 +879,7 @@ class BoostConan(ConanFile):
 
         # Specify here the toolset with the binary if present if don't empty parameter :
         contents += '\nusing "%s" : %s : ' % (self._toolset, self._toolset_version)
-        contents += ' "%s"' % self._cxx.replace("\\", "/")
+        contents += ' %s' % self._cxx.replace("\\", "/")
 
         if tools.is_apple_os(self.settings.os):
             if self.settings.compiler == "apple-clang":
@@ -896,6 +896,8 @@ class BoostConan(ConanFile):
             contents += '<cxxflags>"%s" ' % os.environ["CXXFLAGS"]
         if "CFLAGS" in os.environ:
             contents += '<cflags>"%s" ' % os.environ["CFLAGS"]
+        if "CPPFLAGS" in os.environ:
+            contents += '<compileflags>"%s" ' % os.environ["CPPFLAGS"]
         if "LDFLAGS" in os.environ:
             contents += '<linkflags>"%s" ' % os.environ["LDFLAGS"]
         if "ASFLAGS" in os.environ: