diff --git a/secure/Makefile.inc b/secure/Makefile.inc
index 658101a1df9d..4d43279bc1f2 100644
--- a/secure/Makefile.inc
+++ b/secure/Makefile.inc
@@ -8,7 +8,7 @@ CRYPTOBJDIR=	${.CURDIR}/../../lib/libcrypt/obj
 CRYPTOBJDIR=	${.CURDIR}/../../lib/libcrypt
 .endif
 
-.if !defined(MAKE_IDEA) || ${MAKE_IDEA} != YES
+.if !defined(MAKE_IDEA)
 CFLAGS+= -DNO_IDEA
 .endif
 
diff --git a/secure/lib/libcrypto/Makefile b/secure/lib/libcrypto/Makefile
index 60c8c2f1a677..81ac3c3ecb08 100644
--- a/secure/lib/libcrypto/Makefile
+++ b/secure/lib/libcrypto/Makefile
@@ -160,7 +160,7 @@ SRCS+=	hmac.c
 INCS+=	hmac.h
 
 # idea
-.if defined(MAKE_IDEA) && ${MAKE_IDEA} == YES
+.if defined(MAKE_IDEA)
 SRCS+=	i_cbc.c i_cfb64.c i_ecb.c i_ofb64.c i_skey.c
 INCS+=	idea.h
 .endif
@@ -309,7 +309,7 @@ opensslconf.h: opensslconf-${MACHINE_ARCH}.h
 	cp ${.ALLSRC} ${.TARGET}
 
 evp.h: ${LCRYPTO_SRC}/crypto/evp/evp.h
-.if !defined(MAKE_IDEA) || ${MAKE_IDEA} != YES
+.if !defined(MAKE_IDEA)
 	sed '/^#ifndef OPENSSL_NO_IDEA$$/,/^#endif$$/d' ${.ALLSRC} > ${.TARGET}
 .else
 	cp ${.ALLSRC} ${.TARGET}
@@ -333,7 +333,7 @@ afterinstall:
 _bn_asmpath=	${LCRYPTO_SRC}/crypto/bn/asm
 .endif
 
-.if defined(MAKE_IDEA) && ${MAKE_IDEA} == YES
+.if defined(MAKE_IDEA)
 _ideapath=	${LCRYPTO_SRC}/crypto/idea
 .endif
 
diff --git a/secure/lib/libcrypto/Makefile.inc b/secure/lib/libcrypto/Makefile.inc
index 939449c83ddf..d6e9cc5c9e95 100644
--- a/secure/lib/libcrypto/Makefile.inc
+++ b/secure/lib/libcrypto/Makefile.inc
@@ -7,7 +7,7 @@ CFLAGS+=	-DTERMIOS -DANSI_SOURCE
 CFLAGS+=	-I${LCRYPTO_SRC} -I${LCRYPTO_SRC}/crypto -I${.OBJDIR}
 CFLAGS+=	-DOPENSSL_THREADS
 
-.if !defined(MAKE_IDEA) || ${MAKE_IDEA} != YES
+.if !defined(MAKE_IDEA)
 CFLAGS+=	-DOPENSSL_NO_IDEA
 .endif