diff --git a/runtime/wasm/build.sh b/runtime/wasm/build.sh
index c2ea5a197195..068b7c8b478d 100755
--- a/runtime/wasm/build.sh
+++ b/runtime/wasm/build.sh
@@ -6,7 +6,7 @@ if cargo --version | grep -q "nightly"; then
 else
 	CARGO_CMD="cargo +nightly"
 fi
-$CARGO_CMD build --target=wasm32-unknown-unknown --release
+RUSTFLAGS="-C link-arg=--export-table" $CARGO_CMD build --target=wasm32-unknown-unknown --release
 for i in polkadot_runtime
 do
 	wasm-gc target/wasm32-unknown-unknown/release/$i.wasm target/wasm32-unknown-unknown/release/$i.compact.wasm
diff --git a/runtime/wasm/target/wasm32-unknown-unknown/release/polkadot_runtime.compact.wasm b/runtime/wasm/target/wasm32-unknown-unknown/release/polkadot_runtime.compact.wasm
index 33748a336b57..110ca06ae232 100644
Binary files a/runtime/wasm/target/wasm32-unknown-unknown/release/polkadot_runtime.compact.wasm and b/runtime/wasm/target/wasm32-unknown-unknown/release/polkadot_runtime.compact.wasm differ
diff --git a/runtime/wasm/target/wasm32-unknown-unknown/release/polkadot_runtime.wasm b/runtime/wasm/target/wasm32-unknown-unknown/release/polkadot_runtime.wasm
index 44efd5f231b3..ca9aa3bc9093 100755
Binary files a/runtime/wasm/target/wasm32-unknown-unknown/release/polkadot_runtime.wasm and b/runtime/wasm/target/wasm32-unknown-unknown/release/polkadot_runtime.wasm differ
diff --git a/test-parachains/build.sh b/test-parachains/build.sh
index d53869f2d477..d7dced137993 100755
--- a/test-parachains/build.sh
+++ b/test-parachains/build.sh
@@ -2,7 +2,7 @@
 set -e
 
 # Make LLD produce a binary that imports memory from the outside environment.
-export RUSTFLAGS="-C link-arg=--import-memory -C lto=fat -C panic=abort"
+export RUSTFLAGS="-C link-arg=--import-memory,--export-table -C lto=fat -C panic=abort"
 
 for i in adder
 do