diff --git a/config/Make.rules.Darwin b/config/Make.rules.Darwin
index e978836..2276b5d 100644
--- a/config/Make.rules.Darwin
+++ b/config/Make.rules.Darwin
@@ -35,7 +35,7 @@ endif
 shared_cppflags = $(if $(filter-out program,$($1_target)),-fPIC) -fvisibility=hidden
 
 cppflags        = -Wall -Wextra -Wshadow -Wshadow-all -Wredundant-decls -Wno-shadow-field \
-                  -Wdeprecated -Wstrict-prototypes -Werror -Wconversion -Wdocumentation -pthread \
+                  -Wdeprecated -Wstrict-prototypes -Wconversion -Wdocumentation -pthread \
                   $(if $(filter yes,$(OPTIMIZE)),-O2 -DNDEBUG,-g)
 
 ifeq ($(MAXWARN),yes)