diff --git a/util/collect_coverage.sh b/util/collect_coverage.sh
index 328a5c6..648de5e 100755
--- a/util/collect_coverage.sh
+++ b/util/collect_coverage.sh
@@ -6,14 +6,20 @@
   set -x
 fi
 
+if [[ "${RUNFILES_DIR:0:1}" != "/" ]]; then
+  if [[ -n "${ROOT}" ]]; then
+    RUNFILES_DIR="${ROOT}/${RUNFILES_DIR}"
+  fi
+fi
+
 readonly profdata_file=$COVERAGE_DIR/coverage.profdata
 
-"$RUNFILES_DIR/$TEST_WORKSPACE/$RUST_LLVM_PROFDATA" \
+"$RUNFILES_DIR/$RUST_LLVM_PROFDATA" \
   merge \
   --sparse "$COVERAGE_DIR"/*.profraw \
   -output "$profdata_file"
 
-"$RUNFILES_DIR/$TEST_WORKSPACE/$RUST_LLVM_COV" \
+"$RUNFILES_DIR/$RUST_LLVM_COV" \
   export \
   -format=lcov \
   -instr-profile "$profdata_file" \
@@ -22,4 +28,7 @@
   -path-equivalence=.,"$ROOT" \
   "$RUNFILES_DIR/$TEST_WORKSPACE/$TEST_BINARY" \
   @"$COVERAGE_MANIFEST" \
-  | sed 's#/proc/self/cwd/##' > "$COVERAGE_OUTPUT_FILE"
+  | sed 's#/proc/self/cwd/##' > "$COVERAGE_DIR/rust_coverage.dat"
+
+# Bazel doesn't support LLVM profdata coverage amongst other coverage formats.
+rm "$profdata_file"