diff --git a/dectmngr/Makefile b/dectmngr/Makefile
index 4a6c55486..bbe47fbb4 100644
--- a/dectmngr/Makefile
+++ b/dectmngr/Makefile
@@ -53,6 +53,7 @@ endif
 
 TARGET_CFLAGS += \
 	-Wall \
+        -Werror \
 	-I$(STAGING_DIR)/usr/include/libxml2
 
 ifeq ($(CONFIG_ENABLE_LINE_SETTINGS_EXTENSION),y)
diff --git a/endptmngr/Makefile b/endptmngr/Makefile
index 6a6a71f45..f6a494858 100644
--- a/endptmngr/Makefile
+++ b/endptmngr/Makefile
@@ -56,6 +56,10 @@ define Build/Prepare
 endef
 endif
 
+TARGET_CFLAGS += \
+        -Wall \
+        -Werror
+
 define Package/endptmngr/install
 	$(CP) ./files/* $(1)/
 	$(INSTALL_DIR) $(1)/usr/sbin