diff --git a/core/site_scons/tools.py b/core/site_scons/tools.py
index 97a4b71cb1..728b0bccfb 100644
--- a/core/site_scons/tools.py
+++ b/core/site_scons/tools.py
@@ -53,7 +53,7 @@ def get_defs_for_cmake(defs: list[str | tuple[str, str]]) -> list[str]:
     for d in defs:
         if type(d) is tuple:
             val = d[1].replace('"', '\\"').replace("(", "\\(").replace(")", "\\)")
-            result.append(d[0] + '="' + val + '"')
+            result.append(f'{d[0]}="{val}"')
         else:
             result.append(d)
     return result