diff --git a/math/coinmp/Makefile b/math/coinmp/Makefile
index 07092bee4e0f..30f95b55c77a 100644
--- a/math/coinmp/Makefile
+++ b/math/coinmp/Makefile
@@ -63,6 +63,6 @@ post-install:
 
 check regression-test test: build
 	${SETENV} ${MAKE_ENV} ${MAKE} ${_MAKE_JOBS} \
-	${MAKE_ARGS} test -C ${WRKSRC}
+		${MAKE_ARGS} test -C ${WRKSRC}
 
 .include <bsd.port.mk>