diff --git a/dev-cpp/scitokens-cpp/scitokens-cpp-0.7.3.ebuild b/dev-cpp/scitokens-cpp/scitokens-cpp-0.7.3.ebuild
index 5d3e16ae92..d6173e21e9 100644
--- a/dev-cpp/scitokens-cpp/scitokens-cpp-0.7.3.ebuild
+++ b/dev-cpp/scitokens-cpp/scitokens-cpp-0.7.3.ebuild
@@ -36,7 +36,7 @@ PATCHES=(
 
 src_prepare() {
 	# Unbundle dev-cpp/gtest, dev-cpp/jwt-cpp
-	rm -rvf vendor
+	rm -r vendor || die
 	# Fix include path for picojson.
 	find src/ \( -name '*.cpp' -o -name '*.h' \) -type f -print0 | xargs -0 sed -r -e "s:picojson/picojson\.h:picojson.h:g" -i || die
 	cmake_src_prepare
diff --git a/dev-cpp/scitokens-cpp/scitokens-cpp-1.0.0.ebuild b/dev-cpp/scitokens-cpp/scitokens-cpp-1.0.0.ebuild
index e0b428f844..acf2c661de 100644
--- a/dev-cpp/scitokens-cpp/scitokens-cpp-1.0.0.ebuild
+++ b/dev-cpp/scitokens-cpp/scitokens-cpp-1.0.0.ebuild
@@ -32,7 +32,7 @@ RESTRICT="!test? ( test )"
 
 src_prepare() {
 	# Unbundle dev-cpp/gtest, dev-cpp/jwt-cpp
-	rm -rvf vendor
+	rm -r vendor || die
 	# Fix include path for picojson.
 	find src/ \( -name '*.cpp' -o -name '*.h' \) -type f -print0 | \
 		xargs -0 sed -r -e "s:picojson/picojson\.h:picojson.h:g" -i || die
diff --git a/dev-cpp/scitokens-cpp/scitokens-cpp-1.0.1.ebuild b/dev-cpp/scitokens-cpp/scitokens-cpp-1.0.1.ebuild
index e0b428f844..acf2c661de 100644
--- a/dev-cpp/scitokens-cpp/scitokens-cpp-1.0.1.ebuild
+++ b/dev-cpp/scitokens-cpp/scitokens-cpp-1.0.1.ebuild
@@ -32,7 +32,7 @@ RESTRICT="!test? ( test )"
 
 src_prepare() {
 	# Unbundle dev-cpp/gtest, dev-cpp/jwt-cpp
-	rm -rvf vendor
+	rm -r vendor || die
 	# Fix include path for picojson.
 	find src/ \( -name '*.cpp' -o -name '*.h' \) -type f -print0 | \
 		xargs -0 sed -r -e "s:picojson/picojson\.h:picojson.h:g" -i || die