diff --git a/devel/easy-profiler/Makefile b/devel/easy-profiler/Makefile
index fbacd4520e06..3f1adee09e24 100644
--- a/devel/easy-profiler/Makefile
+++ b/devel/easy-profiler/Makefile
@@ -1,27 +1,29 @@
 PORTNAME=	easy-profiler
 DISTVERSIONPREFIX=	v
 DISTVERSION=	2.1.0-41
 DISTVERSIONSUFFIX=	-g3104dd4
 CATEGORIES=	devel
 
 MAINTAINER=	yuri@FreeBSD.org
 COMMENT=	Lightweight profiler library for C++
 
 LICENSE=	APACHE20 MIT
 LICENSE_COMB=	dual
 LICENSE_FILE_APACHE20=	${WRKSRC}/easy_profiler_core/LICENSE.APACHE
 LICENSE_FILE_MIT=	${WRKSRC}/easy_profiler_core/LICENSE.MIT
 
 BROKEN_i386=	see https://github.com/yse/easy_profiler/issues/202
 
 USES=		cmake compiler:c++11-lang qt:5
 USE_QT=		core gui widgets buildtools_build qmake_build
 
 USE_GITHUB=	yes
 GH_ACCOUNT=	yse
 GH_PROJECT=	easy_profiler
 
+CXXFLAGS+=	-Dint64=int64_t
+
 post-install:
 	@${RM} ${STAGEDIR}${PREFIX}/LICENSE.*
 
 .include <bsd.port.mk>