diff --git a/misc/generated/CMakeLists.txt b/misc/generated/CMakeLists.txt
index 95838dbc46..5268703ffd 100644
--- a/misc/generated/CMakeLists.txt
+++ b/misc/generated/CMakeLists.txt
@@ -9,7 +9,7 @@ file(STRINGS
   ENCODING "UTF-8"
   )
 foreach (CONFIG ${LIST_OF_CONFIGS})
-  string(REGEX REPLACE "#define (CONFIG_[A-Z|_|0-9]*) (.*)" "GEN_ABSOLUTE_SYM_KCONFIG(\\1, \\2)" CONFIG ${CONFIG})
+  string(REGEX REPLACE "#define (CONFIG_[A-Za-z|_|0-9]*) (.*)" "GEN_ABSOLUTE_SYM_KCONFIG(\\1, \\2)" CONFIG ${CONFIG})
   string(REGEX REPLACE "\"(.*)\"" "1" CONFIG ${CONFIG})
   set(GEN_ABS_SYM_LIST "${GEN_ABS_SYM_LIST}${CONFIG};\n")
 endforeach()