diff --git a/debian/rules b/debian/rules
index d565f9f1e8431c5f1288d38995d80650d363722c..0a7d2cfb9295dec3a9864c92878479806e8d7646 100755
--- a/debian/rules
+++ b/debian/rules
@@ -14,6 +14,8 @@ export DEB_LDFLAGS_MAINT_APPEND := -Wl,--as-needed
 # enable all the hardening options
 export DEB_BUILD_MAINT_OPTIONS = hardening=+all
 
+export DPKG_GENSYMBOLS_CHECK_LEVEL = 4
+
 # DEB_* variables
 DEB_HOST_MULTIARCH ?= $(shell dpkg-architecture -qDEB_HOST_MULTIARCH)