diff --git a/math/metis/Makefile b/math/metis/Makefile
index c129edad7ab0..b019fdb37c21 100644
--- a/math/metis/Makefile
+++ b/math/metis/Makefile
@@ -67,7 +67,7 @@ pre-configure:
 	${WRKSRC}/GKlib/GKlibSystem.cmake
 	@${REINPLACE_CMD} -e "\|/home/karypis/|d" \
 	${WRKSRC}/programs/CMakeLists.txt
-.if ((${ARCH}=="amd64") || (${ARCH}=="aarch64") || (${ARCH}=="sparc64") || (${ARCH}=="ppc64") || (${ARCH}=="ia64"))
+.if ((${ARCH}=="amd64") || (${ARCH}=="aarch64") || (${ARCH}=="sparc64") || (${ARCH}=="powerpc64"))
 	@${REINPLACE_CMD}-e \
 		's|IDXTYPEWIDTH 32|IDXTYPEWIDTH 64|' \
 		${WRKSRC}/include/metis.h