diff --git a/.github/workflows/test-r.yml b/.github/workflows/test-r.yml
index 1e91ba031..874ad2444 100644
--- a/.github/workflows/test-r.yml
+++ b/.github/workflows/test-r.yml
@@ -166,6 +166,12 @@ jobs:
 
       - uses: rui314/setup-mold@v1
 
+      - name: Install mold on Rtools
+        if: runner.os == 'Windows'
+        run: |
+          pacman -Sy --noconfirm
+          pacman -S --noconfirm --needed mingw-w64-x86_64-mold
+
       - uses: Swatinem/rust-cache@v2
         with:
           workspaces: "src/rust -> target"
diff --git a/configure b/configure
index 61d899272..b81c5fae2 100755
--- a/configure
+++ b/configure
@@ -210,19 +210,19 @@ check_mold() {
     return
   fi
 
-  if command -v mold >/dev/null 2>&1; then
+  if command -v ld.mold >/dev/null 2>&1; then
     add_additional_lib "-fuse-ld=mold"
     export RUSTFLAGS="${RUSTFLAGS:-} -C link-args=-fuse-ld=mold"
     cat <<EOF
 ---------------------- [MOLD LINKER ENABLED] ----------------------
-mold detected in PATH: enabling '-fuse-ld=mold'
+ld.mold detected in PATH: enabling '-fuse-ld=mold'
 To disable, set R_POLARS_USE_MOLD='false'
 -------------------------------------------------------------------
 EOF
   else
     cat <<EOF
 ---------------------- [MOLD LINKER DISABLED] ----------------------
-'mold' not found in PATH. Continuing without mold.
+'ld.mold' not found in PATH. Continuing without mold.
 --------------------------------------------------------------------
 EOF
   fi