diff --git a/src/common/util.c b/src/common/util.c
index 3055ac2750..2f001d753c 100644
--- a/src/common/util.c
+++ b/src/common/util.c
@@ -329,17 +329,6 @@ tor_strupper(char *s)
   }
 }
 
-int
-tor_strisprint(const char *s)
-{
-  while (*s) {
-    if (!TOR_ISPRINT(*s))
-      return 0;
-    s++;
-  }
-  return 1;
-}
-
 /* Compares the first strlen(s2) characters of s1 with s2.  Returns as for
  * strcmp.
  */
diff --git a/src/common/util.h b/src/common/util.h
index cdcd64f6b4..ebcf70f7ec 100644
--- a/src/common/util.h
+++ b/src/common/util.h
@@ -90,7 +90,6 @@ extern int dmalloc_free(const char *file, const int line, void *pnt,
 #define HEX_CHARACTERS "0123456789ABCDEFabcdef"
 void tor_strlower(char *s);
 void tor_strupper(char *s);
-int tor_strisprint(const char *s);
 int strcmpstart(const char *s1, const char *s2);
 int strcasecmpstart(const char *s1, const char *s2);
 int strcmpend(const char *s1, const char *s2);