diff --git a/config.mk b/config.mk
index cd4e821..d1b161e 100644
--- a/config.mk
+++ b/config.mk
@@ -2,7 +2,7 @@
 PREFIX = /usr/local
 
 # Default compile flags (overridable by environment)
-CFLAGS ?= -g -Wall -Wextra -Werror -Wno-unused-parameter -Wno-sign-compare -Wno-unused-function -Wno-unused-variable -Wdeclaration-after-statement
+CFLAGS ?= -g -Wall -Wextra -Werror -Wno-unused-parameter -Wno-sign-compare -Wno-unused-function -Wno-unused-variable -Wno-unused-result -Wdeclaration-after-statement
 
 # Uncomment to build XWayland support
 #CFLAGS += -DXWAYLAND