diff --git a/src/getchar.c b/src/getchar.c
index 9edb767..cc93a7d 100644
--- a/src/getchar.c
+++ b/src/getchar.c
@@ -4443,6 +4443,7 @@
 #endif
     int		is_id = TRUE;
     int		vim_abbr;
+    int		qlen;		/* length of q, CSI/K_SPECIAL unescaped */
 
     if (typebuf.tb_no_abbr_cnt)	/* abbrev. are not recursive */
 	return FALSE;
@@ -4520,6 +4521,19 @@
 #else
 	mp = first_abbr;
 #endif
+	qlen = mp->m_keylen;
+	if (vim_strbyte(mp->m_keys, K_SPECIAL) != NULL)
+	{
+	    char_u	*q = vim_strsave(mp->m_keys);
+
+	    /* might have CSI escaped mp->m_keys */
+	    if (q != NULL)
+	    {
+		vim_unescape_csi(q);
+		qlen = STRLEN(q);
+		vim_free(q);
+	    }
+	}
 	for ( ; mp;
 #ifdef FEAT_LOCALMAP
 		mp->m_next == NULL ? (mp = mp2, mp2 = NULL) :
@@ -4528,7 +4542,7 @@
 	{
 	    /* find entries with right mode and keys */
 	    if (       (mp->m_mode & State)
-		    && mp->m_keylen == len
+		    && qlen == len
 		    && !STRNCMP(mp->m_keys, ptr, (size_t)len))
 		break;
 	}
diff --git a/src/testdir/Make_amiga.mak b/src/testdir/Make_amiga.mak
index 5012812..c0df2c1 100644
--- a/src/testdir/Make_amiga.mak
+++ b/src/testdir/Make_amiga.mak
@@ -43,6 +43,7 @@
 		test_insertcount.out \
 		test_listlbr.out \
 		test_listlbr_utf8.out \
+		test_mapping.out \
 		test_options.out \
 		test_qf_title.out \
 		test_utf8.out
diff --git a/src/testdir/Make_dos.mak b/src/testdir/Make_dos.mak
index 38264f2..9150043 100644
--- a/src/testdir/Make_dos.mak
+++ b/src/testdir/Make_dos.mak
@@ -42,6 +42,7 @@
 		test_insertcount.out \
 		test_listlbr.out \
 		test_listlbr_utf8.out \
+		test_mapping.out \
 		test_options.out \
 		test_qf_title.out \
 		test_utf8.out
diff --git a/src/testdir/Make_ming.mak b/src/testdir/Make_ming.mak
index 782f89d..247c0f2 100644
--- a/src/testdir/Make_ming.mak
+++ b/src/testdir/Make_ming.mak
@@ -62,6 +62,7 @@
 		test_insertcount.out \
 		test_listlbr.out \
 		test_listlbr_utf8.out \
+		test_mapping.out \
 		test_options.out \
 		test_qf_title.out \
 		test_utf8.out
diff --git a/src/testdir/Make_os2.mak b/src/testdir/Make_os2.mak
index d3e8337..cfade3f 100644
--- a/src/testdir/Make_os2.mak
+++ b/src/testdir/Make_os2.mak
@@ -44,6 +44,7 @@
 		test_insertcount.out \
 		test_listlbr.out \
 		test_listlbr_utf8.out \
+		test_mapping.out \
 		test_options.out \
 		test_qf_title.out \
 		test_utf8.out
diff --git a/src/testdir/Make_vms.mms b/src/testdir/Make_vms.mms
index 3c7afc3..6483b7c 100644
--- a/src/testdir/Make_vms.mms
+++ b/src/testdir/Make_vms.mms
@@ -103,6 +103,7 @@
 	 test_insertcount.out \
 	 test_listlbr.out \
 	 test_listlbr_utf8.out \
+	 test_mapping.out \
 	 test_options.out \
 	 test_qf_title.out \
 	 test_utf8.out
diff --git a/src/testdir/Makefile b/src/testdir/Makefile
index 59fe011..41f25cf 100644
--- a/src/testdir/Makefile
+++ b/src/testdir/Makefile
@@ -40,6 +40,7 @@
 		test_insertcount.out \
 		test_listlbr.out \
 		test_listlbr_utf8.out \
+		test_mapping.out \
 		test_options.out \
 		test_qf_title.out \
 		test_utf8.out
diff --git a/src/testdir/test_mapping.in b/src/testdir/test_mapping.in
new file mode 100644
index 0000000..55dac09
--- /dev/null
+++ b/src/testdir/test_mapping.in
@@ -0,0 +1,15 @@
+Test for mappings and abbreviations
+
+STARTTEST
+:so small.vim
+:so mbyte.vim
+: " abbreviations with р (0x80) should work
+:inoreab чкпр   vim
+GAчкпр 
+
+:/^test/,$w! test.out
+:qa!
+ENDTEST
+
+test starts here:
+
diff --git a/src/testdir/test_mapping.ok b/src/testdir/test_mapping.ok
new file mode 100644
index 0000000..abdaea6
--- /dev/null
+++ b/src/testdir/test_mapping.ok
@@ -0,0 +1,2 @@
+test starts here:
+vim
diff --git a/src/version.c b/src/version.c
index 7540f8d..7d1a191 100644
--- a/src/version.c
+++ b/src/version.c
@@ -742,6 +742,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    483,
+/**/
     482,
 /**/
     481,