diff --git a/R/dependencies.R b/R/dependencies.R
index 1ff1121..42d987e 100644
--- a/R/dependencies.R
+++ b/R/dependencies.R
@@ -345,6 +345,9 @@ dependencies_from_description <- function(package, dcf) {
   ## dcf does not contain any of these elements we have no dependencies to
   ## speak of
   dependency_levels <- c("Depends", "Imports", "LinkingTo", "Remotes")
+  if (package$is_dependency_package && isTRUE(getOption("lockbox.auto_install_suggests", TRUE))) {
+    dependency_levels <- c(dependency_levels, "Suggests")
+  }
   if (!any(dependency_levels %in% colnames(dcf))) return(list())
 
   ## The parse_dcf function returns a matrix where rows correspond to packages
@@ -356,6 +359,7 @@ dependencies_from_description <- function(package, dcf) {
       colnames(dcf)])[[package$name]])
   
   if(NROW(dependencies_parsed) == 1 && NCOL(dependencies_parsed) == 1) return(list())
+  suggests_dependencies <- dependencies_parsed[grepl("^Suggests", rownames(dependencies_parsed)), 1]
 
   ## We separate out non-remote dependencies from remote dependencies, because
   ## they require different logic
@@ -367,9 +371,19 @@ dependencies_from_description <- function(package, dcf) {
     vapply(non_remote_list, `[[`, character(1), "name")
     , vapply(remote_list, `[[`, character(1), "name"))]
 
+  non_remote_list <- mark_suggests(non_remote_list, suggests_dependencies)
   c(non_remote_list, remote_list)
 }
 
+mark_suggests <- function(non_remote_list, suggests_dependencies) {
+  lapply(non_remote_list, function(pkg) {
+    if (pkg$name %in% suggests_dependencies) {
+      pkg$is_suggests <- TRUE
+    }
+    pkg
+  })
+}
+
 get_non_remote_list <- function(dependencies_parsed) {
   non_remote_dependencies <- dependencies_parsed[!grepl("^Remotes", rownames(dependencies_parsed)), ]
 
diff --git a/R/library.R b/R/library.R
index 11425aa..7c95dde 100644
--- a/R/library.R
+++ b/R/library.R
@@ -149,11 +149,19 @@ install_locked_package <- function(locked_package) {
 
   ## If we have an error during installation try again and show everything
   if (is(output, "error") || !file.exists(pkgdir)) {
-    try(install_package(locked_package, temp_library, FALSE))
-    unlink(temp_library, TRUE, TRUE)
-    stop("Must have installed the package ",
-         crayon_red(as.character(locked_package$name)),
-         " of version ", sQuote(as.character(locked_package$version)))
+    if (is.null(locked_package$is_suggests)) {
+      try(install_package(locked_package, temp_library, FALSE))
+      unlink(temp_library, TRUE, TRUE)
+      stop("Must have installed the package ",
+           crayon_red(as.character(locked_package$name)),
+           " of version ", sQuote(as.character(locked_package$version)))
+    } else {
+      warning("Tried and failed to install suggested package ",
+           crayon_red(as.character(locked_package$name)),
+           " of version ", sQuote(as.character(locked_package$version)))
+      unlink(temp_library, TRUE, TRUE)
+      return()
+    }
   }
 
   ver <- package_version_from_path(pkgdir)
@@ -288,7 +296,7 @@ get_available_cran_version <- function(package, repo = "http://cran.r-project.or
     , filter = c("OS_type", "subarch", "duplicates"))
     available <- data.frame(unique(available[, c("Package", "Version")]))
   }
-  if (!package$name %in% available$Package) {
+  if (!package$name %in% available$Package && is.null(package$is_suggests)) {
     prefix <- "Locked"
     if (package$is_dependency_package) prefix <- "Dependency"
     stop(paste0(prefix, " Package ", package$name, " is not available on CRAN."
diff --git a/tests/testthat/helper-random-dependencies.R b/tests/testthat/helper-random-dependencies.R
index e3f354d..6876c57 100644
--- a/tests/testthat/helper-random-dependencies.R
+++ b/tests/testthat/helper-random-dependencies.R
@@ -45,10 +45,11 @@ get_rscript_command <- function(lockbox_dir, logfile_name, final_msg, install_di
   option_cmd1 <- paste0("options(lockbox.directory = '", lockbox_dir,"');")
   option_cmd2 <- paste0("options(lockbox.transient_dir = '", lockbox_dir
     , "_transient","');")
-  lock_cmd <- "library(methods);lockbox::lockbox('generated_lockfile.yml')"
+  lock_cmd <- paste0("setwd('", dirname(lockbox_dir),"');library(methods);lockbox::lockbox('generated_lockfile.yml');")
+  option_cmd_sink <- paste0("sink('", logfile_name,"', split = TRUE);")
   msg_cmd <- paste0("cat('", final_msg, "')")
   paste0("cd ", install_dir, ";Rscript -e ","\"", option_cmd1, option_cmd2
-    , lock_cmd, ";", msg_cmd, "\" > ", logfile_name)
+    , lock_cmd, option_cmd_sink, msg_cmd, "\"")
 }
 
 ## Not currently in use, but left in case we want to do randomized tests in the future