diff --git a/mysql-test/r/gis.result b/mysql-test/r/gis.result
index 5706f076c6c..22cb6d29b2c 100644
--- a/mysql-test/r/gis.result
+++ b/mysql-test/r/gis.result
@@ -1034,6 +1034,14 @@ p
 NULL
 NULL
 drop table t1;
+#
+# Test for bug #59888 "debug assertion when attempt to create spatial index
+#                      on char > 31 bytes".
+#
+create table t1(a char(32) not null) engine=myisam;
+create spatial index i on t1 (a);
+ERROR 42000: A SPATIAL index may only contain a geometrical type column
+drop table t1;
 End of 5.1 tests
 CREATE TABLE t1(
 col0 BINARY NOT NULL,
diff --git a/mysql-test/t/gis.test b/mysql-test/t/gis.test
index 7ca364d935c..e68e70c685a 100644
--- a/mysql-test/t/gis.test
+++ b/mysql-test/t/gis.test
@@ -757,6 +757,17 @@ insert into t1 values (geomfromtext("point(1 0)"));
 select * from (select polygon(t1.a) as p from t1 order by t1.a) d;
 drop table t1;
 
+
+--echo #
+--echo # Test for bug #59888 "debug assertion when attempt to create spatial index
+--echo #                      on char > 31 bytes".
+--echo #
+create table t1(a char(32) not null) engine=myisam;
+--error ER_SPATIAL_MUST_HAVE_GEOM_COL
+create spatial index i on t1 (a);
+drop table t1;
+
+
 --echo End of 5.1 tests
 
 #
diff --git a/storage/myisam/mi_create.c b/storage/myisam/mi_create.c
index 46c61eb4709..ea7382300cc 100644
--- a/storage/myisam/mi_create.c
+++ b/storage/myisam/mi_create.c
@@ -269,7 +269,7 @@ int mi_create(const char *name,uint keys,MI_KEYDEF *keydefs,
             keyseg->type != HA_KEYTYPE_VARBINARY2)
         {
           my_errno=HA_WRONG_CREATE_OPTION;
-          goto err;
+          goto err_no_lock;
         }
       }
       keydef->keysegs+=sp_segs;
@@ -278,7 +278,7 @@ int mi_create(const char *name,uint keys,MI_KEYDEF *keydefs,
       min_key_length_skip+=SPLEN*2*SPDIMS;
 #else
       my_errno= HA_ERR_UNSUPPORTED;
-      goto err;
+      goto err_no_lock;
 #endif /*HAVE_SPATIAL*/
     }
     else if (keydef->flag & HA_FULLTEXT)
@@ -294,7 +294,7 @@ int mi_create(const char *name,uint keys,MI_KEYDEF *keydefs,
             keyseg->type != HA_KEYTYPE_VARTEXT2)
         {
           my_errno=HA_WRONG_CREATE_OPTION;
-          goto err;
+          goto err_no_lock;
         }
         if (!(keyseg->flag & HA_BLOB_PART) &&
 	    (keyseg->type == HA_KEYTYPE_VARTEXT1 ||
@@ -419,7 +419,7 @@ int mi_create(const char *name,uint keys,MI_KEYDEF *keydefs,
     if (keydef->keysegs > MI_MAX_KEY_SEG)
     {
       my_errno=HA_WRONG_CREATE_OPTION;
-      goto err;
+      goto err_no_lock;
     }
     /*
       key_segs may be 0 in the case when we only want to be able to
@@ -444,7 +444,7 @@ int mi_create(const char *name,uint keys,MI_KEYDEF *keydefs,
         length >= MI_MAX_KEY_BUFF)
     {
       my_errno=HA_WRONG_CREATE_OPTION;
-      goto err;
+      goto err_no_lock;
     }
     set_if_bigger(max_key_block_length,keydef->block_length);
     keydef->keylength= (uint16) key_length;
@@ -491,7 +491,7 @@ int mi_create(const char *name,uint keys,MI_KEYDEF *keydefs,
                     "indexes and/or unique constraints.",
                     MYF(0), name + dirname_length(name));
     my_errno= HA_WRONG_CREATE_OPTION;
-    goto err;
+    goto err_no_lock;
   }
 
   bmove(share.state.header.file_version,(uchar*) myisam_file_magic,4);
@@ -810,12 +810,14 @@ int mi_create(const char *name,uint keys,MI_KEYDEF *keydefs,
   errpos=0;
   mysql_mutex_unlock(&THR_LOCK_myisam);
   if (mysql_file_close(file, MYF(0)))
-    goto err;
+    goto err_no_lock;
   my_free(rec_per_key_part);
   DBUG_RETURN(0);
 
 err:
   mysql_mutex_unlock(&THR_LOCK_myisam);
+
+err_no_lock:
   save_errno=my_errno;
   switch (errpos) {
   case 3: