diff --git a/build/build.plugin.zsh b/build/build.plugin.zsh
index 688d0b6..d45d3a2 100644
--- a/build/build.plugin.zsh
+++ b/build/build.plugin.zsh
@@ -8,7 +8,16 @@ alias build="build-dir --build"
 # command line arguments.
 if [ `uname` = Linux ]; then
   if [[ "`vim --version`" =~ "^VIM - Vi IMproved 8\.1.*$" ]]; then
-    function vimdebug() { vim "+packadd termdebug" "+TermdebugCommand $*" }
+    autoload -U regexp-replace
+    function vimdebug() {
+      # For each item in $* replace * and \* and then replace \ with \\
+      local args=()
+      for arg in "$@"; do
+        regexp-replace arg '\*' '\\*'
+        args+=($arg)
+      done
+      vim "+packadd termdebug" "+TermdebugCommand $args"
+    }
     alias debug='vimdebug'
   elif which cgdb &> /dev/null; then
     alias debug='cgdb --args'
@@ -165,11 +174,11 @@ EOF
 # Build then run a target residing in `~build/bin`.
 build-run() {
   local target=$1; shift 1
-  eval build $target && ~build/bin/$target $*
+  eval build $target && ~build/bin/$target "$@"
 }
 
 # Build then debug a target residing in `~build/bin`.
 build-debug() {
   local target=$1; shift 1
-  eval build $target && debug ~build/bin/$target $*
+  eval build $target && debug ~build/bin/$target "$@"
 }