diff --git a/include/gargoyle/twine.h b/include/gargoyle/twine.h
index c4fe5a6..14d9de6 100644
--- a/include/gargoyle/twine.h
+++ b/include/gargoyle/twine.h
@@ -4,8 +4,8 @@
 #include <gargoyle/codex.h>
 #include <stdint.h>
 
-uint8_t is_sep(char tok);
-uint8_t is_eql(char lhs, char rhs);
+uint8_t gargoyle_is_sep(char tok);
+uint8_t gargoyle_is_eql(char lhs, char rhs);
 uint8_t gargoyle_cmp(const char *s1, const char *s2, uint16_t len, gargoyle_flag_type flags);
 char *gargoyle_cpy(char *dst, const char *src, uint16_t len, gargoyle_flag_type flags);
 
diff --git a/src/sleuth.c b/src/sleuth.c
index 7c73598..a677139 100644
--- a/src/sleuth.c
+++ b/src/sleuth.c
@@ -27,7 +27,7 @@ struct gargoyle_opt *gargoyle_find_emblem(uint16_t optc, struct gargoyle_opt *op
   for(; optc; optc -= 1, optv += 1) {
     if(emblem == optv->emblem) {
       return optv;
-    } else if(flags & GARGOYLE_FLG_ECASE && is_eql(emblem, optv->emblem)) {
+    } else if(flags & GARGOYLE_FLG_ECASE && gargoyle_is_eql(emblem, optv->emblem)) {
       return optv;
     }
   }
diff --git a/src/twine.c b/src/twine.c
index 834284a..dfb3d82 100644
--- a/src/twine.c
+++ b/src/twine.c
@@ -2,19 +2,19 @@
 #include <gargoyle/codex.h>
 #include <gargoyle/twine.h>
 
-uint8_t is_sep(char tok) {
+uint8_t gargoyle_is_sep(char tok) {
   return (tok == '_' || tok == '-');
 }
 
-uint8_t is_eql(char lhs, char rhs) {
+uint8_t gargoyle_is_eql(char lhs, char rhs) {
   return tolower(lhs) == tolower(rhs);
 }
 
 uint8_t gargoyle_cmp(const char *s1, const char *s2, uint16_t len, gargoyle_flag_type flags) {
   while(*s1 && *s2 && len) {
-    if(flags & GARGOYLE_FLG_ICASE && isalpha(*s1) && is_eql(*s1, *s2)) {
+    if(flags & GARGOYLE_FLG_ICASE && isalpha(*s1) && gargoyle_is_eql(*s1, *s2)) {
       s1 += 1, s2 += 1;
-    } else if(flags & GARGOYLE_FLG_SYMBL && is_sep(*s1) && is_sep(*s2)) {
+    } else if(flags & GARGOYLE_FLG_SYMBL && gargoyle_is_sep(*s1) && gargoyle_is_sep(*s2)) {
       s1 += 1, s2 += 1;
     } else if(*s1 == *s2) {
       s1 += 1, s2 += 1;