2 files changed, 8 insertions, 10 deletions
diff --git a/src/utils/stringutils.cpp b/src/utils/stringutils.cpp
index 6ec7817ed..0cece6d0a 100644
--- a/src/utils/stringutils.cpp
+++ b/src/utils/stringutils.cpp
@@ -154,15 +154,6 @@ int compareStrI(const std::string &a, const std::string &b)
         return 1;
 }
 
-
-bool isWordSeparator(const signed char chr)
-{
-    return chr == ' ' ||
-        chr == ',' ||
-        chr == '.' ||
-        chr == '"';
-}
-
 const std::string findSameSubstring(const std::string &restrict str1,
                                     const std::string &restrict str2)
 {
diff --git a/src/utils/stringutils.h b/src/utils/stringutils.h
index abcbc6b07..cb4bbb332 100644
--- a/src/utils/stringutils.h
+++ b/src/utils/stringutils.h
@@ -136,7 +136,14 @@ int compareStrI(const std::string &a, const std::string &b) A_WARN_UNUSED;
 /**
  * Tells wether the character is a word separator.
  */
-bool isWordSeparator(const signed char chr) A_CONST A_WARN_UNUSED;
+constexpr bool isWordSeparator(const signed char chr) A_CONST A_WARN_UNUSED;
+constexpr bool isWordSeparator(const signed char chr)
+{
+    return chr == ' ' ||
+        chr == ',' ||
+        chr == '.' ||
+        chr == '"';
+}
 
 size_t findI(std::string str, std::string subStr) A_WARN_UNUSED;