diff --git a/debian/changelog b/debian/changelog
index 9787f598..125016fe 100644
--- a/debian/changelog
+++ b/debian/changelog
@@ -1,3 +1,9 @@
+llvm-toolchain-9 (1:9~+rc4-1~exp1) experimental; urgency=medium
+
+  * New snapshot release
+
+ -- Sylvestre Ledru <sylvestre@debian.org>  Tue, 10 Sep 2019 15:25:46 +0200
+
 llvm-toolchain-9 (1:9~+rc3-1~exp3) experimental; urgency=medium
 
   * Force gcc before 9 (gcc 8 on Debian unstable) because it causes
diff --git a/debian/control b/debian/control
index afce6b02..6e4eee31 100644
--- a/debian/control
+++ b/debian/control
@@ -89,8 +89,6 @@ Package: clangd-9
 Architecture: any
 Depends: ${shlibs:Depends}, ${misc:Depends},
  libclang-common-9-dev (= ${binary:Version})
-Replaces: clang-tools-9 (<< 1:9~+rc1-1~exp2)
-Breaks: clang-tools-9 (<< 1:9~+rc1-1~exp2)
 Description: Language server that provides IDE-like features to editors
  clangd understands your C++ code and adds smart features to your editor:
   - code completion
diff --git a/debian/rules b/debian/rules
index b3205728..ba67c9a6 100755
--- a/debian/rules
+++ b/debian/rules
@@ -67,8 +67,8 @@ ifeq ($(shell dpkg --compare-versions $(shell dpkg-query -W -f '$${Version}' g++
 	GCC_VERSION := 4.9
 endif
 
-FORCE_NOT_GCC_9_DISTRO := eoan bullseye
-ifeq (,$(filter $(DISTRO), $(FORCE_NOT_GCC_9_DISTRO)))
+FORCE_NOT_GCC_9_DISTRO := eoan bullseye sid
+ifneq (,$(filter $(DISTRO),$(FORCE_NOT_GCC_9_DISTRO)))
 # Force gcc-8
 	GCC_VERSION := 8
 endif
@@ -278,6 +278,7 @@ preconfigure:
 	@echo "DEB_HOST_ARCH=$(DEB_HOST_ARCH)"
 	@echo "DEB_HOST_ARCH_OS=$(DEB_HOST_ARCH_OS)"
 	@echo "DISTRO=$(DISTRO)"
+	@echo "GCC_VERSION=$(GCC_VERSION)"
 
 	for f in debian/*.in; do \
 		f2=$$(echo $$f | sed 's/\.in$$//;s/X\.Y/$(LLVM_VERSION)/'); \