diff --git a/libstdc++-v3/ChangeLog b/libstdc++-v3/ChangeLog
index 84fb8d7d0457ef9b6c591c14af04c94cc0a723fa..3adec7cc818b2c3a7a0c6861799c49e3ef991265 100644
--- a/libstdc++-v3/ChangeLog
+++ b/libstdc++-v3/ChangeLog
@@ -1,3 +1,10 @@
+2019-01-08  Jonathan Wakely  <jwakely@redhat.com>
+
+	PR libstdc++/88066
+	* include/bits/locale_conv.h: Use <> for includes not "".
+	* include/ext/random: Likewise.
+	* include/ext/vstring.h: Likewise.
+
 2019-01-08  Rainer Orth  <ro@CeBiTec.Uni-Bielefeld.DE>
 
 	* config/abi/pre/gnu.ver (GLIBCXX_3.4): Tighten existing patterns.
diff --git a/libstdc++-v3/include/bits/locale_conv.h b/libstdc++-v3/include/bits/locale_conv.h
index 3dffdc4d1b17c481db7fa04b50154f3107032fc0..8438fedb5161bdf134973c420aae082a23d1904a 100644
--- a/libstdc++-v3/include/bits/locale_conv.h
+++ b/libstdc++-v3/include/bits/locale_conv.h
@@ -35,10 +35,10 @@
 #else
 
 #include <streambuf>
-#include "stringfwd.h"
-#include "allocator.h"
-#include "codecvt.h"
-#include "unique_ptr.h"
+#include <bits/stringfwd.h>
+#include <bits/allocator.h>
+#include <bits/codecvt.h>
+#include <bits/unique_ptr.h>
 
 namespace std _GLIBCXX_VISIBILITY(default)
 {
diff --git a/libstdc++-v3/include/ext/random b/libstdc++-v3/include/ext/random
index 91c5a296a795c0487c40a1036cb803af1f33f117..41a2962c8f6e5de9bd5a90e960ba2c8822c364ff 100644
--- a/libstdc++-v3/include/ext/random
+++ b/libstdc++-v3/include/ext/random
@@ -3857,8 +3857,8 @@ _GLIBCXX_BEGIN_NAMESPACE_VERSION
 _GLIBCXX_END_NAMESPACE_VERSION
 } // namespace __gnu_cxx
 
-#include "ext/opt_random.h"
-#include "random.tcc"
+#include <ext/opt_random.h>
+#include <ext/random.tcc>
 
 #endif // _GLIBCXX_USE_C99_STDINT_TR1 && UINT32_C
 
diff --git a/libstdc++-v3/include/ext/vstring.h b/libstdc++-v3/include/ext/vstring.h
index d83ba02fc1a6af8ee0a6138b5f8787ebde514ffc..ddffebf089392c5574d620b1853151d2e57d2076 100644
--- a/libstdc++-v3/include/ext/vstring.h
+++ b/libstdc++-v3/include/ext/vstring.h
@@ -2960,6 +2960,6 @@ _GLIBCXX_END_NAMESPACE_VERSION
 
 #endif // C++11
 
-#include "vstring.tcc" 
+#include <ext/vstring.tcc>
 
 #endif /* _VSTRING_H */