diff --git a/kiss b/kiss
index db8c205..08383d9 100755
--- a/kiss
+++ b/kiss
@@ -44,7 +44,6 @@ pkg_lint() {
     [ -f sources ]   || die "[$1]: Sources file not found."
     [ -x build ]     || die "[$1]: Build file not found or not executable."
     [ -s version ]   || die "[$1]: Version file not found or empty."
-    [ -f checksums ] || die "[$1]: Checksums file not found ('$0 checksums $1')."
 
     # Ensure that the release field in the version file is set
     # to something.
@@ -370,7 +369,7 @@ pkg_build() {
         set -- $missing_deps
         set +f
     }
-    log "Installing: $*."
+    log "Building: $*."
     log "Checking to see if any dependencies have already been built..."
     log "Installing any pre-built dependencies..."
 
@@ -411,6 +410,27 @@ pkg_build() {
     done
 
     for pkg; do pkg_lint "$pkg"; done
+    for pkg; do
+        # Find the package's repository files. This needs to keep
+        # happening as we can't store this data in any kind of data
+        # structure.
+        repo_dir=$(pkg_search "$pkg")
+
+        # Ensure that checksums exist prior to building the package.
+        [ -f "$repo_dir/checksums" ] || {
+            log "[$pkg]: Checksums are missing."
+
+            # Instead of dying above, log it to the terminal. Also define a
+            # variable so we *can* die after all checksum files have been
+            # checked.
+            no_checkums="$no_checkums$pkg "
+        }
+    done
+
+    # Die here as packages without checksums were found above.
+    [ "$no_checkums" ] &&
+        die "Run '$kiss checksum ${no_checkums% }' to generate checksums."
+
     for pkg; do pkg_sources "$pkg"; done
     for pkg; do pkg_verify  "$pkg"; done