diff --git a/src/quickfix.c b/src/quickfix.c
index 690c3ff..101240a 100644
--- a/src/quickfix.c
+++ b/src/quickfix.c
@@ -268,7 +268,7 @@
     if (efminfo->addr[idx])
     {
 	// Each errorformat pattern can occur only once
-	semsg(_("E372: Too many %%%c in format string"), *efmpat);
+	semsg(_(e_too_many_chr_in_format_string), *efmpat);
 	return NULL;
     }
     if ((idx && idx < 6
@@ -276,7 +276,7 @@
 	    || (idx == 6
 		&& vim_strchr((char_u *)"OPQ", efminfo->prefix) == NULL))
     {
-	semsg(_("E373: Unexpected %%%c in format string"), *efmpat);
+	semsg(_(e_unexpected_chr_in_format_str), *efmpat);
 	return NULL;
     }
     efminfo->addr[idx] = (char_u)++round;
@@ -351,7 +351,7 @@
 		    // skip ;
 		if (efmp == efm + len)
 		{
-		    emsg(_("E374: Missing ] in format string"));
+		    emsg(_(e_missing_rsb_in_format_string));
 		    return NULL;
 		}
 	    }
@@ -364,7 +364,7 @@
     else
     {
 	// TODO: scanf()-like: %*ud, %*3c, %*f, ... ?
-	semsg(_("E375: Unsupported %%%c in format string"), *efmp);
+	semsg(_(e_unsupported_chr_in_format_string), *efmp);
 	return NULL;
     }
 
@@ -385,7 +385,7 @@
 	efminfo->prefix = *efmp;
     else
     {
-	semsg(_("E376: Invalid %%%c in format string prefix"), *efmp);
+	semsg(_(e_invalid_chr_in_format_string_prefix), *efmp);
 	return NULL;
     }
 
@@ -452,7 +452,7 @@
 	    }
 	    else
 	    {
-		semsg(_("E377: Invalid %%%c in format string"), *efmp);
+		semsg(_(e_invalid_chr_in_format_string), *efmp);
 		return FAIL;
 	    }
 	}
@@ -573,7 +573,7 @@
     }
 
     if (fmt_first == NULL)	// nothing found
-	emsg(_("E378: 'errorformat' contains no pattern"));
+	emsg(_(e_errorformat_contains_no_pattern));
 
     goto parse_efm_end;
 
@@ -1273,7 +1273,7 @@
     {
 	if (*fields->namebuf == NUL)
 	{
-	    emsg(_("E379: Missing or empty directory name"));
+	    emsg(_(e_missing_or_empty_directory_name));
 	    return QF_FAIL;
 	}
 	qfl->qf_directory =
@@ -3787,7 +3787,7 @@
 	{
 	    if (qi->qf_curlist == 0)
 	    {
-		emsg(_("E380: At bottom of quickfix stack"));
+		emsg(_(e_at_bottom_of_quickfix_stack));
 		break;
 	    }
 	    --qi->qf_curlist;
@@ -3796,7 +3796,7 @@
 	{
 	    if (qi->qf_curlist >= qi->qf_listcount - 1)
 	    {
-		emsg(_("E381: At top of quickfix stack"));
+		emsg(_(e_at_top_of_quickfix_stack));
 		break;
 	    }
 	    ++qi->qf_curlist;