diff --git a/.github/workflows/wasm.yml b/.github/workflows/wasm.yml
index cb8bbaa0341..385da0c371a 100644
--- a/.github/workflows/wasm.yml
+++ b/.github/workflows/wasm.yml
@@ -30,23 +30,25 @@ jobs:
       - name: "Create build directories"
         run: |
           mkdir -p ${{ github.workspace }}/Build/lagom-tools/TZDB
-          mkdir -p ${{ github.workspace }}/Build/lagom-tools/UCD
-          mkdir -p ${{ github.workspace }}/Build/lagom-tools/CLDR
-          mkdir -p ${{ github.workspace }}/Build/wasm
+          mkdir -p ${{ github.workspace }}/Build/wasm/UCD
+          mkdir -p ${{ github.workspace }}/Build/wasm/CLDR
       - name: "TimeZoneData cache"
         uses: actions/cache@03e00da99d75a2204924908e1cca7902cafce66b
         with:
           path: ${{ github.workspace }}/Build/lagom-tools/TZDB
           key: TimeZoneData-${{ hashFiles('Meta/CMake/time_zone_data.cmake') }}
+      - name: "Copy over TZDB cache"
+        run: |
+          cp -r ${{ github.workspace }}/Build/lagom-tools/TZDB ${{ github.workspace }}/Build/wasm/TZDB
       - name: "UnicodeData cache"
         uses: actions/cache@03e00da99d75a2204924908e1cca7902cafce66b
         with:
-          path: ${{ github.workspace }}/Build/lagom-tools/UCD
+          path: ${{ github.workspace }}/Build/wasm/UCD
           key: UnicodeData-${{ hashFiles('Meta/CMake/unicode_data.cmake') }}
       - name: "UnicodeLocale cache"
         uses: actions/cache@03e00da99d75a2204924908e1cca7902cafce66b
         with:
-          path: ${{ github.workspace }}/Build/lagom-tools/CLDR
+          path: ${{ github.workspace }}/Build/wasm/CLDR
           key: UnicodeLocale-${{ hashFiles('Meta/CMake/locale_data.cmake') }}
       - name: "Build host lagom tools"
         run: |