diff --git a/debian/changelog b/debian/changelog
index 41f6f07a..165f5a4d 100644
--- a/debian/changelog
+++ b/debian/changelog
@@ -1,8 +1,12 @@
 llvm-toolchain-13 (1:13~++20210731010128+6eaf46beb462-1~exp2) experimental; urgency=medium
 
   * Add symbol clang_CompileCommand_getNumMappedSources to libclang
+  * Add a new variable called SONAME_CLANG as
+    clang soname has started with llvm-toolchain-13.
+    it is normal that 13 is what is seen in 14 or later version as
+    it is bumped only with abi changes
 
- --
+ -- Sylvestre Ledru <sylvestre@debian.org>  Mon, 16 Aug 2021 15:48:27 +0200
 
 llvm-toolchain-13 (1:13~++20210731010128+6eaf46beb462-1~exp1) experimental; urgency=medium
 
diff --git a/debian/prepare-new-release.sh b/debian/prepare-new-release.sh
index 867af120..28ea6d16 100644
--- a/debian/prepare-new-release.sh
+++ b/debian/prepare-new-release.sh
@@ -14,6 +14,7 @@ for F in $LIST; do
 done
 
 echo "once you copy the old version into a new branch"
+echo "edit debian/rules, maybe update SONAME_CLANG"
 echo "edit debian/control, update the VCS links"
 echo "edit debian/control, update the source pkg name"
 echo "edit debian/changelog, update the source pkg name"
diff --git a/debian/rules b/debian/rules
index 1a82e4ac..aeb4f26a 100755
--- a/debian/rules
+++ b/debian/rules
@@ -22,6 +22,10 @@ ifeq ($(LLVM_VERSION),$(LLVM_VERSION_FULL))
 endif
 
 SONAME_EXT      := 1
+# clang soname has started with llvm-toolchain-13.
+# it is normal that 13 is what is seen in 14 or later version as
+# it is bumped only with abi changes
+SONAME_CLANG      := 13
 SONAME_OPENMP	:= 5
 # Manage the case when the version is 3.5~svn213052-1~exp1 or 3.4.2-1
 DEBIAN_REVISION := $(shell dpkg-parsechangelog |  sed -rne "s,^Version: 1:([0-9.]+)(~|-)(.*),\3,p")
@@ -621,8 +625,8 @@ override_dh_auto_install:
 
 	: # libclang
 	cd debian/tmp/usr/lib/llvm-$(LLVM_VERSION)/lib/ && \
-	ln -s libclang-$(LLVM_VERSION).so libclang.so.$(SONAME_EXT) && \
-	ln -s libclang-$(LLVM_VERSION).so libclang-$(LLVM_VERSION).so.$(SONAME_EXT)
+	ln -s libclang-$(SONAME_CLANG).so libclang.so.$(SONAME_EXT) && \
+	ln -s libclang-$(SONAME_CLANG).so libclang-$(SONAME_CLANG).so.$(SONAME_EXT)
 
 	: # libomp
 	cd debian/tmp/usr/lib/llvm-$(LLVM_VERSION)/lib && rm -f libomp.so; \