diff --git a/multimedia/obs-studio/Makefile b/multimedia/obs-studio/Makefile
index 0065021ee0aa..b0b4ea7eab50 100644
--- a/multimedia/obs-studio/Makefile
+++ b/multimedia/obs-studio/Makefile
@@ -69,6 +69,7 @@ CMAKE_ARGS=	-DOBS_VERSION_OVERRIDE:STRING="${PORTVERSION}" \
 		-DQT_VERSION=6 \
 		-DPython_EXECUTABLE="${PYTHON_CMD}"
 
+CFLAGS_powerpc64=	-Wno-error=deprecated-altivec-src-compat -Wno-error=pass-failed
 CFLAGS_powerpc64le=	-Wno-error=deprecated-altivec-src-compat
 LDFLAGS+=	-fPIC # pending https://github.com/obsproject/obs-studio/issues/3436