diff --git a/XD.c b/XD.c
index 11eb44c..4ad1692 100644
--- a/XD.c
+++ b/XD.c
@@ -101,7 +101,8 @@ char
 					return NULL;
 				}
 				if (strncmp(fstr, "gitdir: ", strlen("gitdir: ")) == 0) {
-					return realpath(strndup(fstr + strlen("gitdir: "), strlen(fstr + strlen("gitdir: ")) - 1), NULL);
+					fstr[strlen(fstr) - 1] = '\0';
+					return realpath(fstr + strlen("gitdir: "), NULL);
 				}
 			}
 		}