diff --git a/Makefile.common b/Makefile.common
index 60911ec75e..8dcd38f829 100644
--- a/Makefile.common
+++ b/Makefile.common
@@ -1,6 +1,6 @@
 ARCH_FLAGS =
 STANDARD_FLAGS = -std=c++17 -Wno-sized-deallocation -fno-sized-deallocation
-WARNING_FLAGS = -Wextra -Wall -Wundef -Wcast-qual -Wwrite-strings -Wimplicit-fallthrough
+WARNING_FLAGS = -Werror -Wextra -Wall -Wundef -Wcast-qual -Wwrite-strings -Wimplicit-fallthrough
 FLAVOR_FLAGS = -fno-exceptions -fno-rtti
 OPTIMIZATION_FLAGS = -Os