diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 3ca43c6cc0..1d03bd8401 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -169,11 +169,20 @@ jobs:
       - name: wasm32 build (iroh-relay)
         run: cargo build --target wasm32-unknown-unknown -p iroh-relay --no-default-features
 
+      - name: wasm32 build (iroh-net-report)
+        run: cargo build --target wasm32-unknown-unknown -p iroh-net-report --no-default-features
+
       # If the Wasm file contains any 'import "env"' declarations, then
       # some non-Wasm-compatible code made it into the final code.
       - name: Ensure no 'import "env"' in iroh-relay Wasm
         run: |
           ! wasm-tools print --skeleton target/wasm32-unknown-unknown/debug/iroh_relay.wasm | grep 'import "env"'
+
+      # If the Wasm file contains any 'import "env"' declarations, then
+      # some non-Wasm-compatible code made it into the final code.
+      - name: Ensure no 'import "env"' in iroh-net-report Wasm
+        run: |
+          ! wasm-tools print --skeleton target/wasm32-unknown-unknown/debug/iroh_net_report.wasm | grep 'import "env"'
       
 
   check_semver:
diff --git a/iroh-net-report/Cargo.toml b/iroh-net-report/Cargo.toml
index 1467df1d04..b28bd2d1d8 100644
--- a/iroh-net-report/Cargo.toml
+++ b/iroh-net-report/Cargo.toml
@@ -12,6 +12,9 @@ keywords = ["networking"]
 # Sadly this also needs to be updated in .github/workflows/ci.yml
 rust-version = "1.81"
 
+[lib]
+crate-type = ["lib", "cdylib"] # cdylib is needed for Wasm support
+
 [lints]
 workspace = true
 
diff --git a/iroh-relay/Cargo.toml b/iroh-relay/Cargo.toml
index 6009bb18bb..984bd66536 100644
--- a/iroh-relay/Cargo.toml
+++ b/iroh-relay/Cargo.toml
@@ -10,6 +10,9 @@ repository = "https://github.com/n0-computer/iroh"
 keywords = ["networking", "holepunching", "p2p"]
 rust-version = "1.81"
 
+[lib]
+crate-type = ["lib", "cdylib"] # cdylib is needed for Wasm support
+
 [lints]
 workspace = true