diff --git a/configure.in b/configure.in
index 49ef50d4b2d..07605d8c4b4 100644
--- a/configure.in
+++ b/configure.in
@@ -7501,6 +7501,7 @@ else
       AC_MSG_RESULT([no])
       WIN32_NEW_STYLE_JEMALLOC=1
       AC_DEFINE(WIN32_NEW_STYLE_JEMALLOC)
+      WIN32_CRT_SRC_DIR=
       if test -z "$MOZ_DEBUG"; then
         WIN32_CRT_LIBS="msvcrt.lib msvcprt.lib"
       else
@@ -7510,7 +7511,7 @@ else
       WIN32_CRTDLL_FULLPATH=`lib -nologo -list $WIN32_CRT_LIBS | grep crtdll\\.obj`
       lib -NOLOGO -OUT:crtdll.obj $WIN32_CRT_LIBS -EXTRACT:$WIN32_CRTDLL_FULLPATH
       if grep -q '__imp__\{0,1\}free' crtdll.obj; then
-        MOZ_MEMORY_LDFLAGS='-MANIFEST:NO -LIBPATH:$(DIST)/lib -NODEFAULTLIB:msvcrt -NODEFAULTLIB:msvcrtd -NODEFAULTLIB:msvcprt -NODEFAULTLIB:msvcprtd -DEFAULTLIB:mozcrt'
+        MOZ_MEMORY_LDFLAGS='-LIBPATH:$(DIST)/lib -NODEFAULTLIB:msvcrt -NODEFAULTLIB:msvcrtd -NODEFAULTLIB:msvcprt -NODEFAULTLIB:msvcprtd -DEFAULTLIB:mozcrt'
       else
         MOZ_MEMORY_LDFLAGS='$(DIST)/../memory/jemalloc/jemalloc.lib'
       fi