diff --git a/programs/Makefile b/programs/Makefile
index 7ddc4c5..696ba17 100644
--- a/programs/Makefile
+++ b/programs/Makefile
@@ -3,7 +3,7 @@
 # To compile on MinGW: add "-lws2_32" to LDFLAGS
 # To compile with PKCS11: add "-lpkcs11-helper" to LDFLAGS
 
-CFLAGS	= -I../include -D_FILE_OFFSET_BITS=64 -Wall -Wdeclaration-after-statement
+CFLAGS	= -I../include -D_FILE_OFFSET_BITS=64 -Wall -W -Wdeclaration-after-statement
 OFLAGS	= -O
 LDFLAGS	= -L../library -lpolarssl