diff --git a/src/bin/embryo/embryo_cc_sc1.c b/src/bin/embryo/embryo_cc_sc1.c
index 0340d35cbb..37e71d4f76 100644
--- a/src/bin/embryo/embryo_cc_sc1.c
+++ b/src/bin/embryo/embryo_cc_sc1.c
@@ -681,7 +681,7 @@ setconfig(char *root)
 	  }
 
         /* Make sure we have enough space for the trailing DIRSEP_CHAR */
-        if (strlen(path) == sizeof(path) - 1)
+        if (strlen(path) == (sizeof(path) - 1 -1))
           {
              len = strlen(path);
              path[len] = DIRSEP_CHAR;