diff --git a/packages/suggestion/src/findSuggestionMatch.ts b/packages/suggestion/src/findSuggestionMatch.ts
index fcbc2087..fe7be2b9 100644
--- a/packages/suggestion/src/findSuggestionMatch.ts
+++ b/packages/suggestion/src/findSuggestionMatch.ts
@@ -47,11 +47,12 @@ export function findSuggestionMatch(config: Trigger): SuggestionMatch {
     return null
   }
 
-  // JavaScript doesn't have lookbehinds; this hacks a check that first character is " "
-  // or the line beginning
+  // JavaScript doesn't have lookbehinds. This hacks a check that first character
+  // is a space or the start of the line
   const matchPrefix = match.input.slice(Math.max(0, match.index - 1), match.index)
+  const matchPrefixIsSpace = /^[\s\0]?$/.test(matchPrefix)
 
-  if (prefixSpace && !/^[\s\0]?$/.test(matchPrefix)) {
+  if (prefixSpace && !matchPrefixIsSpace) {
     return null
   }