diff --git a/examples/demo01.yml b/examples/demo01.yml
index cf11cc7..b125176 100644
--- a/examples/demo01.yml
+++ b/examples/demo01.yml
@@ -1,11 +1,11 @@
 connectors:
   X1:
     type: D-Sub
-    gender: female
+    subtype: female
     pinout: [DCD, RX, TX, DTR, GND, DSR, RTS, CTS, RI]
   X2:
     type: Molex KK 254
-    gender: female
+    subtype: female
     pinout: [GND, RX, TX]
 
 cables:
diff --git a/examples/demo02.yml b/examples/demo02.yml
index f77ed1f..4d30808 100644
--- a/examples/demo02.yml
+++ b/examples/demo02.yml
@@ -1,7 +1,7 @@
 templates: # defining templates to be used later on
   - &molex_f
     type: Molex KK 254
-    gender: female
+    subtype: female
   - &con_i2c
     pinout: [GND, +5V, SCL, SDA]
   - &wire_i2c
@@ -24,7 +24,7 @@ connectors:
     pinout: [GND, +12V, MISO, MOSI, SCK]
   X5:
     type: Molex Micro-Fit
-    gender: male
+    subtype: male
     pinout: [GND, +12V]
 
 cables:
diff --git a/examples/ex01.yml b/examples/ex01.yml
index aca8d46..83cce3c 100644
--- a/examples/ex01.yml
+++ b/examples/ex01.yml
@@ -1,11 +1,11 @@
 connectors:
   X1:
     type: Molex KK 254 # more information
-    gender: female
+    subtype: female
     pinout: [GND, VCC, RX, TX] # pincount is implicit in pinout
   X2:
     type: Molex KK 254
-    gender: female
+    subtype: female
     pinout: [GND, VCC, RX, TX]
 
 cables:
diff --git a/examples/ex02.yml b/examples/ex02.yml
index 30179d1..056e6fe 100644
--- a/examples/ex02.yml
+++ b/examples/ex02.yml
@@ -1,11 +1,11 @@
 connectors:
   X1: &boo
     type: Molex Micro-Fit
-    gender: male
+    subtype: male
     pinout: [GND, VCC]
   X2: &con_power_f # define template
     type: Molex Micro-Fit
-    gender: female
+    subtype: female
     pinout: [GND, VCC]
   X3:
     <<: *con_power_f # create from template
diff --git a/examples/ex03.yml b/examples/ex03.yml
index 21fc828..911817b 100644
--- a/examples/ex03.yml
+++ b/examples/ex03.yml
@@ -1,11 +1,11 @@
 connectors:
   X1: &boo
     type: Molex Micro-Fit
-    gender: male
+    subtype: male
     pinout: [GND, VCC]
   X2: &con_power_f
     type: Molex Micro-Fit
-    gender: female
+    subtype: female
     pinout: [GND, VCC]
   X3:
     <<: *con_power_f
diff --git a/examples/ex04.yml b/examples/ex04.yml
index ce36c99..998ce7f 100644
--- a/examples/ex04.yml
+++ b/examples/ex04.yml
@@ -1,11 +1,11 @@
 # connectors:
 #   X1:
 #     type: D-Sub
-#     gender: female
+#     subtype: female
 #     pincount: 4
 #   X2:
 #     type: Molex KK 254
-#     gender: female
+#     subtype: female
 #     pincount: 3
 
 cables:
diff --git a/examples/ex05.yml b/examples/ex05.yml
index d9afcf9..8450a79 100644
--- a/examples/ex05.yml
+++ b/examples/ex05.yml
@@ -2,7 +2,7 @@
 templates:
   - &template_con
     type: Molex KK 254
-    gender: female
+    subtype: female
     pinout: [GND, VCC, SCL, SDA]
   - &template_wire
     gauge: 0.25 mm2
diff --git a/examples/ex06.yml b/examples/ex06.yml
index 94f68e4..fa07b5c 100644
--- a/examples/ex06.yml
+++ b/examples/ex06.yml
@@ -2,7 +2,7 @@
 templates:
   - &template_con
     type: Molex KK 254
-    gender: female
+    subtype: female
     pinout: [GND, VCC, SCL, SDA]
   - &template_wire
     gauge: 0.25 mm2
diff --git a/readme.md b/readme.md
index b899f71..9f51810 100644
--- a/readme.md
+++ b/readme.md
@@ -32,11 +32,11 @@ _Note_: WireViz is not designed to represent the complete wiring of a system. It
     connectors:
       X1:
         type: D-Sub
-        gender: female
+        subtype: female
         pinout: [DCD, RX, TX, DTR, GND, DSR, RTS, CTS, RI]
       X2:
         type: Molex KK 254
-        gender: female
+        subtype: female
         pinout: [GND, RX, TX]
 
     cables:
diff --git a/src/wireviz.py b/src/wireviz.py
index aae122d..03a6bc2 100755
--- a/src/wireviz.py
+++ b/src/wireviz.py
@@ -128,7 +128,7 @@ class Harness:
             else:
                 # a = attributes
                 a = [n.type,
-                     n.gender,
+                     n.subtype,
                      '{}-pin'.format(len(n.pinout)) if n.show_pincount else '']
                 # p = pinout
                 p = [[],[],[]]
@@ -256,7 +256,7 @@ class Harness:
         if gen_bom:
             # connectors
             _con = self.bom_connectors()
-            header_con = ['Type','Gender','Pin count','Qty','Designators']
+            header_con = ['Type','Subtype','Pin count','Qty','Designators']
             bom_con = tuplelist2tsv(_con, header_con)
             with open('{}.connectors.bom.tsv'.format(filename),'w') as file:
                 file.write(bom_con)
@@ -276,16 +276,16 @@ class Harness:
         bom = []
         types = Counter([v.type for v in self.connectors.values()])
         for type in types.keys():
-            genders = Counter([v.gender for v in self.connectors.values() if v.type == type])
-            for gender in genders.keys():
+            subtypes = Counter([v.subtype for v in self.connectors.values() if v.type == type])
+            for subtype in subtypes.keys():
                 pincounts = Counter([v.pincount for v in self.connectors.values() if v.type == type and
-                                                                                     v.gender == gender])
+                                                                                     v.subtype == subtype])
                 for pincount in pincounts.keys():
                     designators = [k for k,v in self.connectors.items() if v.type == type and
-                                                                           v.gender == gender and
+                                                                           v.subtype == subtype and
                                                                            v.pincount == pincount]
                     qty = pincounts[pincount]
-                    bom.append([type, gender, pincount, qty, designators])
+                    bom.append([type, subtype, pincount, qty, designators])
         return bom
 
     def bom_cables_and_cutlist(self):
@@ -323,7 +323,7 @@ class Connector:
     name: str
     category: str = None
     type: str = None
-    gender: str = None
+    subtype: str = None
     pincount: int = None
     notes: str = None
     pinout: List[Any] = field(default_factory=list)