diff --git a/make/projects-dir.mk b/make/projects-dir.mk
index a551e429..eaf006e9 100644
--- a/make/projects-dir.mk
+++ b/make/projects-dir.mk
@@ -127,10 +127,10 @@ pkg-manager-refresh:
 	$(PKG_MANAGER_SH) refresh -y
 
 pkg-install-prereq-build:
-	@$(PROJECTS_PY) requires-pkg --flavours "build" $(BUILD_PROJECTS) | xargs -r $(PKG_MANAGER_SH) install -y
+	$(PKG_MANAGER_SH) install -y $(shell $(PROJECTS_PY) requires-pkg --flavours "build" $(BUILD_PROJECTS))
 
 pkg-install-prereq-release:
-	@$(PROJECTS_PY) requires-pkg --flavours "build run release" $(BUILD_PROJECTS) | xargs -r $(PKG_MANAGER_SH) install -y
+	$(PKG_MANAGER_SH) install -y $(shell $(PROJECTS_PY) requires-pkg --flavours "build run release" $(BUILD_PROJECTS))
 
 pkg-exclude-built-today:
 	touch $(EXCLUDES_FILE)
diff --git a/scripts/pkg-manager.sh b/scripts/pkg-manager.sh
index 57b0b5d2..d42e089e 100644
--- a/scripts/pkg-manager.sh
+++ b/scripts/pkg-manager.sh
@@ -51,14 +51,14 @@ cmd_install()
 			opts="--force-resolution --auto-agree-with-licenses"
 			global_opts="$global_opts --non-interactive --gpg-auto-import-keys --no-gpg-checks"
 		}
-		eval run sudo $env zypper $global_opts install $opts "$@"
+		eval run sudo $env -S zypper $global_opts install $opts "$@"
 		;;
 	debian)
 		[ "$non_interactive" = 1 ] && {
 			global_opts="$global_opts -yq"
 			env="$env DEBIAN_FRONTEND=noninteractive"
 		}
-		eval run sudo $env apt-get $global_opts install "$@"
+		eval run sudo $env -S apt-get $global_opts install "$@"
 		;;
 	*)
 		fatal "Tried to install on unsupported platform \"$ID\""
@@ -87,10 +87,10 @@ cmd_refresh()
 		[ "$non_interactive" = 1 ] && {
 			global_opts="$global_opts --non-interactive --gpg-auto-import-keys --no-gpg-checks"
 		}
-		eval run sudo $env zypper $global_opts refresh $opts "$@"
+		eval run sudo $env -S zypper $global_opts refresh $opts "$@"
 		;;
 	debian)
-		eval run sudo $env apt-get $global_opts update "$@"
+		eval run sudo $env -S apt-get $global_opts update "$@"
 		;;
 	*)
 		fatal "Tried to update unsupported platform \"$ID\""