diff --git a/gdb/testsuite/ChangeLog b/gdb/testsuite/ChangeLog
index f5219ea182f..3b7deafe91b 100644
--- a/gdb/testsuite/ChangeLog
+++ b/gdb/testsuite/ChangeLog
@@ -1,3 +1,8 @@
+2020-12-07  Pedro Alves  <pedro@palves.net>
+
+	* gdb.base/break-on-linker-gcd-function.exp: Remove unused
+	'additional_flags' variable.
+
 2020-12-07  Tankut Baris Aktemur  <tankut.baris.aktemur@intel.com>
 
 	* gdb.linespec/explicit.exp: Extend with a test to check completing
diff --git a/gdb/testsuite/gdb.base/break-on-linker-gcd-function.exp b/gdb/testsuite/gdb.base/break-on-linker-gcd-function.exp
index 26df46f1737..de63441bdd4 100644
--- a/gdb/testsuite/gdb.base/break-on-linker-gcd-function.exp
+++ b/gdb/testsuite/gdb.base/break-on-linker-gcd-function.exp
@@ -31,7 +31,6 @@ if [get_compiler_info "c++"] {
     return -1
 }
 
-set additional_flags {-ffunction-sections -Wl,--gc-sections}
 if {[build_executable_from_specs $testfile.exp $testfile \
        {c++ additional_flags=-Wl,--gc-sections} \
        $srcfile {debug c++ additional_flags=-ffunction-sections}]} {