diff --git a/pgloader.1 b/pgloader.1
index 0f7f6bf..ca894cb 100644
--- a/pgloader.1
+++ b/pgloader.1
@@ -2474,6 +2474,18 @@ type bigint with extra auto_increment to bigserial
 type tinyint to boolean when (= 1 precision) using tinyint\-to\-boolean
 .
 .IP "\(bu" 4
+type tinyint when unsigned to smallint drop typemod
+.
+.IP "\(bu" 4
+type smallint when unsigned to integer drop typemod
+.
+.IP "\(bu" 4
+type mediumint when unsigned to integer drop typemod
+.
+.IP "\(bu" 4
+type integer when unsigned to bigint drop typemod
+.
+.IP "\(bu" 4
 type tinyint to smallint drop typemod
 .
 .IP "\(bu" 4
@@ -2486,10 +2498,10 @@ type mediumint to integer drop typemod
 type integer to integer drop typemod
 .
 .IP "\(bu" 4
-type float to float drop typemod
+type bigint to bigint drop typemod
 .
 .IP "\(bu" 4
-type bigint to bigint drop typemod
+type float to float drop typemod
 .
 .IP "\(bu" 4
 type double to double precision drop typemod
diff --git a/pgloader.1.md b/pgloader.1.md
index 1a4778c..a0318e0 100644
--- a/pgloader.1.md
+++ b/pgloader.1.md
@@ -2081,12 +2081,18 @@ Numbers:
 
   - type tinyint to boolean when (= 1 precision) using tinyint-to-boolean
 
+  - type tinyint when unsigned to smallint   drop typemod
+  - type smallint when unsigned to integer  drop typemod
+  - type mediumint when unsigned to integer  drop typemod
+  - type integer when unsigned to bigint    drop typemod
+  
   - type tinyint to smallint   drop typemod
   - type smallint to smallint  drop typemod
   - type mediumint to integer  drop typemod
   - type integer to integer    drop typemod
-  - type float to float        drop typemod
   - type bigint to bigint      drop typemod
+
+  - type float to float        drop typemod
   - type double to double precision drop typemod
 
   - type numeric to numeric keep typemod
diff --git a/src/sources/mysql/mysql-cast-rules.lisp b/src/sources/mysql/mysql-cast-rules.lisp
index af5ed4c..cb4fa3d 100644
--- a/src/sources/mysql/mysql-cast-rules.lisp
+++ b/src/sources/mysql/mysql-cast-rules.lisp
@@ -45,6 +45,16 @@
     (:source (:type "bigint" :typemod (< 19 precision))
      :target (:type "numeric" :drop-typemod t))
 
+    ;; now unsigned types
+    (:source (:type "tinyint" :unsigned t)
+             :target (:type "smallint" :drop-typemod t))
+    (:source (:type "smallint" :unsigned t)
+             :target (:type "integer" :drop-typemod t))
+    (:source (:type "mediumint" :unsigned t)
+             :target (:type "integer"  :drop-typemod t))
+    (:source (:type "integer" :unsigned t)
+             :target (:type "bigint"  :drop-typemod t))
+
     ;; we need the following to benefit from :drop-typemod
     (:source (:type "tinyint")   :target (:type "smallint" :drop-typemod t))
     (:source (:type "smallint")  :target (:type "smallint" :drop-typemod t))