diff --git a/debian/changelog b/debian/changelog
index 82945064..964b9fce 100644
--- a/debian/changelog
+++ b/debian/changelog
@@ -87,6 +87,13 @@ llvm-toolchain-snapshot (1:10~svn366440-1~exp1) experimental; urgency=medium
 
  -- Sylvestre Ledru <sylvestre@debian.org>  Thu, 18 Jul 2019 18:58:32 +0200
 
+llvm-toolchain-9 (1:9-3) unstable; urgency=medium
+
+  * python-clang-9: missing dependency on libclang-9-dev
+    (Closes: #941890)
+
+ -- Sylvestre Ledru <sylvestre@debian.org>  Mon, 07 Oct 2019 09:47:10 +0200
+
 llvm-toolchain-9 (1:9-2) unstable; urgency=medium
 
   [ Gianfranco Costamagna ]
diff --git a/debian/control b/debian/control
index 27052f68..c2a3b2e9 100644
--- a/debian/control
+++ b/debian/control
@@ -222,7 +222,7 @@ Description: Library for coverage-guided fuzz testing
 Package: python-clang-10
 Section: python
 Architecture: any
-Depends: ${shlibs:Depends}, ${misc:Depends}, python3
+Depends: ${shlibs:Depends}, ${misc:Depends}, python3, libclang-9-dev
 Replaces: python-clang-x.y
 Conflicts: python-clang-x.y
 Provides: python-clang-x.y
diff --git a/debian/rules b/debian/rules
index 7741ad6a..b4a872d6 100755
--- a/debian/rules
+++ b/debian/rules
@@ -69,7 +69,8 @@ endif
 
 FORCE_NOT_GCC_9_DISTRO := eoan bullseye sid
 ifneq (,$(filter $(DISTRO),$(FORCE_NOT_GCC_9_DISTRO)))
-# Force gcc-8
+# Force gcc before 9 (gcc 8 on Debian unstable) because it causes
+# huge increase of the size of the .deb (because of .a and .so) and issues in the libs
 	GCC_VERSION := 8
 endif