diff --git a/media-gfx/slic3r/slic3r-1.3.0.ebuild b/media-gfx/slic3r/slic3r-1.3.0-r1.ebuild
similarity index 99%
rename from media-gfx/slic3r/slic3r-1.3.0.ebuild
rename to media-gfx/slic3r/slic3r-1.3.0-r1.ebuild
index b22d714e52..062b2f8709 100644
--- a/media-gfx/slic3r/slic3r-1.3.0.ebuild
+++ b/media-gfx/slic3r/slic3r-1.3.0-r1.ebuild
@@ -37,7 +37,7 @@ BDEPEND="
 RDEPEND="
 	dev-cpp/tbb
 	dev-lang/perl:=
-	dev-libs/boost
+	dev-libs/boost:=
 	dev-perl/Encode-Locale[${PERL_USEDEP}]
 	dev-perl/Moo[${PERL_USEDEP}]
 	gui-libs/gtk
diff --git a/media-gfx/slic3r/slic3r-9999.ebuild b/media-gfx/slic3r/slic3r-9999-r1.ebuild
similarity index 99%
rename from media-gfx/slic3r/slic3r-9999.ebuild
rename to media-gfx/slic3r/slic3r-9999-r1.ebuild
index d30e199f92..258edfb18a 100644
--- a/media-gfx/slic3r/slic3r-9999.ebuild
+++ b/media-gfx/slic3r/slic3r-9999-r1.ebuild
@@ -37,7 +37,7 @@ BDEPEND="
 RDEPEND="
 	dev-cpp/tbb
 	dev-lang/perl:=
-	dev-libs/boost
+	dev-libs/boost:=
 	dev-perl/Encode-Locale[${PERL_USEDEP}]
 	dev-perl/Moo[${PERL_USEDEP}]
 	gui-libs/gtk