diff --git a/src/regexp.c b/src/regexp.c
index 2804f80..369516a 100644
--- a/src/regexp.c
+++ b/src/regexp.c
@@ -361,8 +361,10 @@
 static char_u e_unmatchedpp[] = N_("E53: Unmatched %s%%(");
 static char_u e_unmatchedp[] = N_("E54: Unmatched %s(");
 static char_u e_unmatchedpar[] = N_("E55: Unmatched %s)");
+#ifdef FEAT_SYN_HL
 static char_u e_z_not_allowed[] = N_("E66: \\z( not allowed here");
 static char_u e_z1_not_allowed[] = N_("E67: \\z1 et al. not allowed here");
+#endif
 
 #define NOT_MULTI	0
 #define MULTI_ONE	1
diff --git a/src/regexp_nfa.c b/src/regexp_nfa.c
index 1bb82fd..75cbb2a 100644
--- a/src/regexp_nfa.c
+++ b/src/regexp_nfa.c
@@ -237,8 +237,10 @@
 /* NFA regexp \1 .. \9 encountered. */
 static int nfa_has_backref;
 
+#ifdef FEAT_SYN_HL
 /* NFA regexp has \z( ), set zsubexpr. */
 static int nfa_has_zsubexpr;
+#endif
 
 /* Number of sub expressions actually being used during execution. 1 if only
  * the whole match (subexpr 0) is used. */
@@ -420,7 +422,7 @@
     if (*p == '^')
     {
 	not = TRUE;
-	p ++;
+	p++;
     }
 
     while (p < end)
diff --git a/src/version.c b/src/version.c
index 7787b89..d9a3a88 100644
--- a/src/version.c
+++ b/src/version.c
@@ -729,6 +729,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    1107,
+/**/
     1106,
 /**/
     1105,