diff --git a/debian/changelog b/debian/changelog
index e12a7598..f2f5c682 100644
--- a/debian/changelog
+++ b/debian/changelog
@@ -9,6 +9,7 @@ llvm-toolchain-snapshot (1:11~++20200416103106+997f33cfeec-1~exp1) UNRELEASED; u
   * Upstream change ad97ccf6b26a29262c9cbf5b3e7f6e84c6dcf55f
     broke clangd-atomic-cmake.patch causing some undef symbol on
     i386 and atomic
+  * Also install ompt-multiplex.h in libomp-X-dev
 
  -- Sylvestre Ledru <sylvestre@debian.org>  Thu, 16 Apr 2020 10:34:32 +0200
 
diff --git a/debian/libomp-X.Y-dev.install.in b/debian/libomp-X.Y-dev.install.in
index 9255b828..78d63f24 100644
--- a/debian/libomp-X.Y-dev.install.in
+++ b/debian/libomp-X.Y-dev.install.in
@@ -1,6 +1,7 @@
 #!/usr/bin/dh-exec
 
 /usr/lib/llvm-@LLVM_VERSION@/include/openmp/omp*.h
+/usr/lib/llvm-@LLVM_VERSION@/include/ompt-multiplex.h
 /usr/lib/llvm-@LLVM_VERSION@/lib/libgomp.so
 /usr/lib/llvm-@LLVM_VERSION@/lib/libiomp5.so
 /usr/lib/llvm-@LLVM_VERSION@/lib/libomp*.so