diff --git a/.github/workflows/clang-sanitizer.yml b/.github/workflows/clang-sanitizer.yml
index 9799988fc52..1f670146ebb 100644
--- a/.github/workflows/clang-sanitizer.yml
+++ b/.github/workflows/clang-sanitizer.yml
@@ -36,6 +36,7 @@ jobs:
         cd san
         export UBSAN_OPTIONS=suppressions=../ubsan.supp:log_path=./SAN:print_stacktrace=1:halt_on_errors=0
         export ASAN_OPTIONS=log_path=./SAN:print_stacktrace=1:check_initialization_order=1:detect_leaks=1:halt_on_errors=0
+        export LSAN_OPTIONS=suppressions=../lsan.supp
         ./DDNet "cl_download_skins 0;quit" || true
         ./DDNet-Server shutdown || true
         if test -n "$(find . -maxdepth 1 -name 'SAN.*' -print -quit)"
diff --git a/README.md b/README.md
index bfbb4dc6ca9..52f65460997 100644
--- a/README.md
+++ b/README.md
@@ -165,7 +165,7 @@ make
 ```
 and run with:
 ```bash
-UBSAN_OPTIONS=suppressions=./ubsan.supp:log_path=./SAN:print_stacktrace=1:halt_on_errors=0 ASAN_OPTIONS=log_path=./SAN:print_stacktrace=1:check_initialization_order=1:detect_leaks=1:halt_on_errors=0 ./DDNet
+UBSAN_OPTIONS=suppressions=./ubsan.supp:log_path=./SAN:print_stacktrace=1:halt_on_errors=0 ASAN_OPTIONS=log_path=./SAN:print_stacktrace=1:check_initialization_order=1:detect_leaks=1:halt_on_errors=0 LSAN_OPTIONS=suppressions=./lsan.supp ./DDNet
 ```
 
 Check the SAN.\* files afterwards. This finds more problems than memcheck, runs faster, but requires a modern GCC/Clang compiler.
diff --git a/lsan.supp b/lsan.supp
new file mode 100644
index 00000000000..26c815387f9
--- /dev/null
+++ b/lsan.supp
@@ -0,0 +1 @@
+leak:CCommandProcessorFragment_OpenGL2::Cmd_CreateBufferObject
diff --git a/scripts/integration_test.sh b/scripts/integration_test.sh
index 7d5f3d738ff..024bc1b7ac9 100755
--- a/scripts/integration_test.sh
+++ b/scripts/integration_test.sh
@@ -124,8 +124,7 @@ fi
 # TODO: check for open ports instead
 port=17822
 
-cp ../ubsan.supp .
-cp ../memcheck.supp .
+cp ../ubsan.supp ../lsan.supp ../memcheck.supp .
 
 if [[ $OSTYPE == 'darwin'* ]]; then
 	DETECT_LEAKS=0
@@ -135,6 +134,7 @@ fi
 
 export UBSAN_OPTIONS=suppressions=./ubsan.supp:log_path=./SAN:print_stacktrace=1:halt_on_errors=0
 export ASAN_OPTIONS=log_path=./SAN:print_stacktrace=1:check_initialization_order=1:detect_leaks=$DETECT_LEAKS:halt_on_errors=0
+export LSAN_OPTIONS=suppressions=./lsan.supp
 
 function print_results() {
 	if [ "$arg_valgrind_memcheck" == "1" ]; then
@@ -153,7 +153,7 @@ function print_results() {
 }
 
 if [ "$arg_valgrind_memcheck" == "1" ]; then
-	tool="valgrind --tool=memcheck --gen-suppressions=all --suppressions=memcheck.supp"
+	tool="valgrind --tool=memcheck --gen-suppressions=all --suppressions=memcheck.supp --track-origins=yes"
 	client_args="cl_menu_map \"\";"
 else
 	tool=""
@@ -242,6 +242,7 @@ say "/mc
 ;cmdlist
 ;saytime"
 EOF
+sleep 1
 echo "[*] test rcon commands"
 tr -d '\n' > client1.fifo << EOF
 rcon say hello from admin;