diff --git a/contrib/ports/Common.allports.mk b/contrib/ports/Common.allports.mk
index 862324e9..049ba6af 100644
--- a/contrib/ports/Common.allports.mk
+++ b/contrib/ports/Common.allports.mk
@@ -37,7 +37,7 @@ CFLAGS+=-g -DLWIP_DEBUG -Wall -pedantic -Werror \
 	-Wparentheses -Wsequence-point -Wswitch-default \
 	-Wextra -Wundef -Wshadow -Wpointer-arith -Wcast-qual \
 	-Wc++-compat -Wwrite-strings -Wold-style-definition -Wcast-align \
-	-Wmissing-prototypes -Wredundant-decls -Wnested-externs \
+	-Wmissing-prototypes -Wnested-externs \
 	-Wunreachable-code -Wuninitialized -Wmissing-prototypes \
 	-Wredundant-decls -Waggregate-return -Wlogical-not-parentheses
 #	-Wconversion -Wsign-compare -Wmissing-include-dirs