diff --git a/src/bin/cargo/commands/add.rs b/src/bin/cargo/commands/add.rs
index 32c7699e775e..13c1e09d8c1a 100644
--- a/src/bin/cargo/commands/add.rs
+++ b/src/bin/cargo/commands/add.rs
@@ -7,6 +7,7 @@ use cargo::ops::cargo_add::add;
 use cargo::ops::cargo_add::AddOptions;
 use cargo::ops::cargo_add::DepOp;
 use cargo::ops::cargo_add::DepTable;
+use cargo::ops::generate_lockfile;
 use cargo::util::command_prelude::*;
 use cargo::util::interning::InternedString;
 use cargo::CargoResult;
@@ -193,6 +194,12 @@ pub fn exec(config: &mut Config, args: &ArgMatches) -> CliResult {
     };
     add(&ws, &options)?;
 
+    if !dry_run {
+        // Reload the workspace since we've changed dependencies
+        let ws = args.workspace(config)?;
+        generate_lockfile(&ws)?;
+    }
+
     Ok(())
 }
 
diff --git a/tests/testsuite/cargo_add/git/stderr.log b/tests/testsuite/cargo_add/git/stderr.log
index fdfb1a952a16..839d8bb32727 100644
--- a/tests/testsuite/cargo_add/git/stderr.log
+++ b/tests/testsuite/cargo_add/git/stderr.log
@@ -1,2 +1,3 @@
     Updating git repository `[ROOTURL]/git-package`
       Adding git-package (git) to dependencies.
+    Updating git repository `[ROOTURL]/git-package`
diff --git a/tests/testsuite/cargo_add/git_branch/stderr.log b/tests/testsuite/cargo_add/git_branch/stderr.log
index fdfb1a952a16..839d8bb32727 100644
--- a/tests/testsuite/cargo_add/git_branch/stderr.log
+++ b/tests/testsuite/cargo_add/git_branch/stderr.log
@@ -1,2 +1,3 @@
     Updating git repository `[ROOTURL]/git-package`
       Adding git-package (git) to dependencies.
+    Updating git repository `[ROOTURL]/git-package`
diff --git a/tests/testsuite/cargo_add/git_dev/stderr.log b/tests/testsuite/cargo_add/git_dev/stderr.log
index 4ba31625b58e..8e53bb4beeae 100644
--- a/tests/testsuite/cargo_add/git_dev/stderr.log
+++ b/tests/testsuite/cargo_add/git_dev/stderr.log
@@ -1,2 +1,3 @@
     Updating git repository `[ROOTURL]/git-package`
       Adding git-package (git) to dev-dependencies.
+    Updating git repository `[ROOTURL]/git-package`
diff --git a/tests/testsuite/cargo_add/git_inferred_name/stderr.log b/tests/testsuite/cargo_add/git_inferred_name/stderr.log
index 48f251ea11d7..b5e8b1c9ba39 100644
--- a/tests/testsuite/cargo_add/git_inferred_name/stderr.log
+++ b/tests/testsuite/cargo_add/git_inferred_name/stderr.log
@@ -1,3 +1,4 @@
     Updating git repository `[ROOTURL]/git-package`
     Updating git repository `[ROOTURL]/git-package`
       Adding git-package (git) to dependencies.
+    Updating git repository `[ROOTURL]/git-package`
diff --git a/tests/testsuite/cargo_add/git_multiple_names/stderr.log b/tests/testsuite/cargo_add/git_multiple_names/stderr.log
index e67710147dac..454f0c797ee7 100644
--- a/tests/testsuite/cargo_add/git_multiple_names/stderr.log
+++ b/tests/testsuite/cargo_add/git_multiple_names/stderr.log
@@ -1,3 +1,4 @@
     Updating git repository `[ROOTURL]/git-package`
       Adding my-package1 (git) to dependencies.
       Adding my-package2 (git) to dependencies.
+    Updating git repository `[ROOTURL]/git-package`
diff --git a/tests/testsuite/cargo_add/git_registry/mod.rs b/tests/testsuite/cargo_add/git_registry/mod.rs
index 20ebb39a8489..b546f63abef9 100644
--- a/tests/testsuite/cargo_add/git_registry/mod.rs
+++ b/tests/testsuite/cargo_add/git_registry/mod.rs
@@ -32,7 +32,7 @@ fn git_registry() {
         ])
         .current_dir(cwd)
         .assert()
-        .success()
+        .failure()
         .stdout_matches_path(curr_dir!().join("stdout.log"))
         .stderr_matches_path(curr_dir!().join("stderr.log"));
 
diff --git a/tests/testsuite/cargo_add/git_registry/stderr.log b/tests/testsuite/cargo_add/git_registry/stderr.log
index 548debfadf6a..c554c7ec0827 100644
--- a/tests/testsuite/cargo_add/git_registry/stderr.log
+++ b/tests/testsuite/cargo_add/git_registry/stderr.log
@@ -1,2 +1,6 @@
     Updating git repository `[ROOTURL]/versioned-package`
       Adding versioned-package (git) to dependencies.
+error: failed to parse manifest at `[ROOT]/case/Cargo.toml`
+
+Caused by:
+  dependency (versioned-package) specification is ambiguous. Only one of `git` or `registry` is allowed.
diff --git a/tests/testsuite/cargo_add/git_rev/stderr.log b/tests/testsuite/cargo_add/git_rev/stderr.log
index fdfb1a952a16..839d8bb32727 100644
--- a/tests/testsuite/cargo_add/git_rev/stderr.log
+++ b/tests/testsuite/cargo_add/git_rev/stderr.log
@@ -1,2 +1,3 @@
     Updating git repository `[ROOTURL]/git-package`
       Adding git-package (git) to dependencies.
+    Updating git repository `[ROOTURL]/git-package`
diff --git a/tests/testsuite/cargo_add/git_tag/stderr.log b/tests/testsuite/cargo_add/git_tag/stderr.log
index fdfb1a952a16..839d8bb32727 100644
--- a/tests/testsuite/cargo_add/git_tag/stderr.log
+++ b/tests/testsuite/cargo_add/git_tag/stderr.log
@@ -1,2 +1,3 @@
     Updating git repository `[ROOTURL]/git-package`
       Adding git-package (git) to dependencies.
+    Updating git repository `[ROOTURL]/git-package`
diff --git a/tests/testsuite/cargo_add/list_features_path/stderr.log b/tests/testsuite/cargo_add/list_features_path/stderr.log
index 27378049be00..af6747fe8360 100644
--- a/tests/testsuite/cargo_add/list_features_path/stderr.log
+++ b/tests/testsuite/cargo_add/list_features_path/stderr.log
@@ -4,3 +4,4 @@
              + nose
              - eyes
              - optional-dependency
+    Updating `dummy-registry` index
diff --git a/tests/testsuite/cargo_add/list_features_path_no_default/stderr.log b/tests/testsuite/cargo_add/list_features_path_no_default/stderr.log
index cc6c83462791..7f47a220ec09 100644
--- a/tests/testsuite/cargo_add/list_features_path_no_default/stderr.log
+++ b/tests/testsuite/cargo_add/list_features_path_no_default/stderr.log
@@ -4,3 +4,4 @@
              - mouth
              - nose
              - optional-dependency
+    Updating `dummy-registry` index
diff --git a/tests/testsuite/cargo_add/locked_unchanged/in/Cargo.lock b/tests/testsuite/cargo_add/locked_unchanged/in/Cargo.lock
new file mode 100644
index 000000000000..011b335926ee
--- /dev/null
+++ b/tests/testsuite/cargo_add/locked_unchanged/in/Cargo.lock
@@ -0,0 +1,16 @@
+# This file is automatically @generated by Cargo.
+# It is not intended for manual editing.
+version = 3
+
+[[package]]
+name = "cargo-list-test-fixture"
+version = "0.0.0"
+dependencies = [
+ "my-package",
+]
+
+[[package]]
+name = "my-package"
+version = "99999.0.0+my-package"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "62c45acf9e11d2f97f5b318143219c0b4102eafef1c22a4b545b47104691d915"
diff --git a/tests/testsuite/cargo_add/overwrite_version_with_git/stderr.log b/tests/testsuite/cargo_add/overwrite_version_with_git/stderr.log
index c5013969264d..1b77cbe0e358 100644
--- a/tests/testsuite/cargo_add/overwrite_version_with_git/stderr.log
+++ b/tests/testsuite/cargo_add/overwrite_version_with_git/stderr.log
@@ -1,2 +1,3 @@
     Updating git repository `[ROOTURL]/versioned-package`
       Adding versioned-package (git) to optional dependencies.
+    Updating git repository `[ROOTURL]/versioned-package`