diff --git a/sc2/src/regex/regcomp.c b/sc2/src/regex/regcomp.ci
similarity index 100%
rename from sc2/src/regex/regcomp.c
rename to sc2/src/regex/regcomp.ci
diff --git a/sc2/src/regex/regex_internal.c b/sc2/src/regex/regex_internal.ci
similarity index 100%
rename from sc2/src/regex/regex_internal.c
rename to sc2/src/regex/regex_internal.ci
diff --git a/sc2/src/regex/regexec.c b/sc2/src/regex/regexec.ci
similarity index 100%
rename from sc2/src/regex/regexec.c
rename to sc2/src/regex/regexec.ci