diff --git a/sci-libs/cfitsio/cfitsio-4.6.2.ebuild b/sci-libs/cfitsio/cfitsio-4.6.2.ebuild
index 2fc4db0aad6a2..a47281afa57e8 100644
--- a/sci-libs/cfitsio/cfitsio-4.6.2.ebuild
+++ b/sci-libs/cfitsio/cfitsio-4.6.2.ebuild
@@ -23,6 +23,7 @@ RDEPEND="
 	sys-libs/zlib[${MULTILIB_USEDEP}]
 	bzip2? ( app-arch/bzip2[${MULTILIB_USEDEP}] )
 	curl? ( net-misc/curl[${MULTILIB_USEDEP}] )
+	tools? ( !dev-util/smem )
 "
 # Bug #803350
 DEPEND="