diff --git a/debian/rules b/debian/rules
index 0f4c790..b109191 100755
--- a/debian/rules
+++ b/debian/rules
@@ -1,7 +1,7 @@
 #!/usr/bin/make -f
 
-export DEB_CFLAGS_MAINT_STRIP = -fstack-protector-strong -fcf-protection=full
-export DEB_BUILD_MAINT_OPTIONS = optimize=-lto hardening=-relro
+export DEB_CFLAGS_MAINT_STRIP = -fstack-protector-strong -fcf-protection=full -Wincompatible-pointer-types
+export DEB_BUILD_MAINT_OPTIONS = optimize=-lto -Wno-incompatible-pointer-types -Wno-error
 
 # Prefer gcc-4.5, then 4.7, then 4.9 - otherwise fallback to gcc.
  export CC = $(shell for _cc in gcc-4.5 gcc-4.7 gcc-4.9 gcc false; do \