diff --git a/d2oracle/edit.go b/d2oracle/edit.go
index a8d8e3665..bdc905adc 100644
--- a/d2oracle/edit.go
+++ b/d2oracle/edit.go
@@ -939,6 +939,8 @@ func deleteObject(g *d2graph.Graph, key *d2ast.KeyPath, obj *d2graph.Object) (*d
 						}
 					}
 				}
+			} else if isSuffix {
+				ref.MapKey.Value = d2ast.ValueBox{}
 			}
 		} else if ref.InEdge() {
 			edge := ref.MapKey.Edges[ref.MapKeyEdgeIndex]
diff --git a/d2oracle/edit_test.go b/d2oracle/edit_test.go
index 0cab38984..91b25550c 100644
--- a/d2oracle/edit_test.go
+++ b/d2oracle/edit_test.go
@@ -4853,6 +4853,15 @@ Text 2
 Text
 
 Text 2
+`,
+		},
+		{
+			name: "drop_value",
+			text: `a.b.c: "c label"
+`,
+			key: `a.b.c`,
+
+			exp: `a.b
 `,
 		},
 		{
diff --git a/testdata/d2oracle/TestDelete/drop_value.exp.json b/testdata/d2oracle/TestDelete/drop_value.exp.json
new file mode 100644
index 000000000..97a95b190
--- /dev/null
+++ b/testdata/d2oracle/TestDelete/drop_value.exp.json
@@ -0,0 +1,190 @@
+{
+  "graph": {
+    "name": "",
+    "isFolderOnly": false,
+    "ast": {
+      "range": "d2/testdata/d2oracle/TestDelete/drop_value.d2,0:0:0-1:0:4",
+      "nodes": [
+        {
+          "map_key": {
+            "range": "d2/testdata/d2oracle/TestDelete/drop_value.d2,0:0:0-0:3:3",
+            "key": {
+              "range": "d2/testdata/d2oracle/TestDelete/drop_value.d2,0:0:0-0:3:3",
+              "path": [
+                {
+                  "unquoted_string": {
+                    "range": "d2/testdata/d2oracle/TestDelete/drop_value.d2,0:0:0-0:1:1",
+                    "value": [
+                      {
+                        "string": "a",
+                        "raw_string": "a"
+                      }
+                    ]
+                  }
+                },
+                {
+                  "unquoted_string": {
+                    "range": "d2/testdata/d2oracle/TestDelete/drop_value.d2,0:2:2-0:3:3",
+                    "value": [
+                      {
+                        "string": "b",
+                        "raw_string": "b"
+                      }
+                    ]
+                  }
+                }
+              ]
+            },
+            "primary": {},
+            "value": {}
+          }
+        }
+      ]
+    },
+    "root": {
+      "id": "",
+      "id_val": "",
+      "label_dimensions": {
+        "width": 0,
+        "height": 0
+      },
+      "attributes": {
+        "label": {
+          "value": ""
+        },
+        "style": {},
+        "near_key": null,
+        "shape": {
+          "value": ""
+        },
+        "direction": {
+          "value": ""
+        },
+        "constraint": {
+          "value": ""
+        }
+      },
+      "zIndex": 0
+    },
+    "edges": null,
+    "objects": [
+      {
+        "id": "a",
+        "id_val": "a",
+        "label_dimensions": {
+          "width": 0,
+          "height": 0
+        },
+        "references": [
+          {
+            "key": {
+              "range": "d2/testdata/d2oracle/TestDelete/drop_value.d2,0:0:0-0:3:3",
+              "path": [
+                {
+                  "unquoted_string": {
+                    "range": "d2/testdata/d2oracle/TestDelete/drop_value.d2,0:0:0-0:1:1",
+                    "value": [
+                      {
+                        "string": "a",
+                        "raw_string": "a"
+                      }
+                    ]
+                  }
+                },
+                {
+                  "unquoted_string": {
+                    "range": "d2/testdata/d2oracle/TestDelete/drop_value.d2,0:2:2-0:3:3",
+                    "value": [
+                      {
+                        "string": "b",
+                        "raw_string": "b"
+                      }
+                    ]
+                  }
+                }
+              ]
+            },
+            "key_path_index": 0,
+            "map_key_edge_index": -1
+          }
+        ],
+        "attributes": {
+          "label": {
+            "value": "a"
+          },
+          "style": {},
+          "near_key": null,
+          "shape": {
+            "value": "rectangle"
+          },
+          "direction": {
+            "value": ""
+          },
+          "constraint": {
+            "value": ""
+          }
+        },
+        "zIndex": 0
+      },
+      {
+        "id": "b",
+        "id_val": "b",
+        "label_dimensions": {
+          "width": 0,
+          "height": 0
+        },
+        "references": [
+          {
+            "key": {
+              "range": "d2/testdata/d2oracle/TestDelete/drop_value.d2,0:0:0-0:3:3",
+              "path": [
+                {
+                  "unquoted_string": {
+                    "range": "d2/testdata/d2oracle/TestDelete/drop_value.d2,0:0:0-0:1:1",
+                    "value": [
+                      {
+                        "string": "a",
+                        "raw_string": "a"
+                      }
+                    ]
+                  }
+                },
+                {
+                  "unquoted_string": {
+                    "range": "d2/testdata/d2oracle/TestDelete/drop_value.d2,0:2:2-0:3:3",
+                    "value": [
+                      {
+                        "string": "b",
+                        "raw_string": "b"
+                      }
+                    ]
+                  }
+                }
+              ]
+            },
+            "key_path_index": 1,
+            "map_key_edge_index": -1
+          }
+        ],
+        "attributes": {
+          "label": {
+            "value": "b"
+          },
+          "style": {},
+          "near_key": null,
+          "shape": {
+            "value": "rectangle"
+          },
+          "direction": {
+            "value": ""
+          },
+          "constraint": {
+            "value": ""
+          }
+        },
+        "zIndex": 0
+      }
+    ]
+  },
+  "err": "<nil>"
+}