diff --git a/src/lock_tree/tests/Makefile b/src/lock_tree/tests/Makefile
index 60b3d460bce8b1a298186dca4fff95bc70ee20dd..b38ff3ecc46dc52c89834b2994bccb24d34aff12 100644
--- a/src/lock_tree/tests/Makefile
+++ b/src/lock_tree/tests/Makefile
@@ -31,7 +31,7 @@ else
 endif
 CFLAGS = -W -Wall -Wextra -Werror $(OPTFLAGS) -g3 -ggdb3 $(GCOV_FLAGS)
 CFLAGS += -Wbad-function-cast -Wcast-align -Waggregate-return
-CFLAGS += -Wmissing-noreturn -Wmissing-format-attribute -Wunreachable-code
+CFLAGS += -Wmissing-noreturn -Wmissing-format-attribute 
 CPPFLAGS += -L../ -L../../range_tree 
 CPPFLAGS += -I. -I../ -I../../range_tree -I../../../newbrt -I../../../include -lpthread
 
diff --git a/src/range_tree/tests/Makefile b/src/range_tree/tests/Makefile
index 6ddb1e86681cfa5a73cba0570be01328c434dc9f..2aaebda690fda867fb9237b62d5d33109a9296a9 100644
--- a/src/range_tree/tests/Makefile
+++ b/src/range_tree/tests/Makefile
@@ -26,7 +26,7 @@ LIBNAME=librt.$(LIBEXT)
 # GCOV_FLAGS = -fprofile-arcs -ftest-coverage
 CFLAGS = -W -Wall -Wextra -Werror $(OPTFLAGS) -g3 -ggdb3 $(GCOV_FLAGS)
 CFLAGS += -Wbad-function-cast -Wcast-align -Wconversion -Waggregate-return
-CFLAGS += -Wmissing-noreturn -Wmissing-format-attribute -Wunreachable-code
+CFLAGS += -Wmissing-noreturn -Wmissing-format-attribute
 CPPFLAGS += -L../ -I../ -I../../../newbrt -I../../../include -lpthread