diff --git a/Makefile b/Makefile
index 917a113..5ba1aca 100644
--- a/Makefile
+++ b/Makefile
@@ -30,12 +30,12 @@ test: ## Run tests with warnings treated as errors
 
 test-cov: ## Run workspace-wide tests with coverage; set COV_MIN to enforce a threshold
 	$(CHECK_CARGO_LLVM_COV)
-	RUSTFLAGS="-D warnings" $(CARGO) llvm-cov --workspace --all-features --summary-only --text --fail-under-lines $(COV_MIN) $(BUILD_JOBS)
+	RUSTFLAGS="-D warnings" $(CARGO) llvm-cov --workspace --all-features --doctests --summary-only --text --fail-under-lines $(COV_MIN) $(BUILD_JOBS)
 
 test-cov-lcov: ## Run workspace-wide tests with coverage and write LCOV to coverage/lcov.info
 	$(CHECK_CARGO_LLVM_COV)
 	mkdir -p coverage
-	RUSTFLAGS="-D warnings" $(CARGO) llvm-cov --workspace --all-features --lcov --output-path coverage/lcov.info --fail-under-lines $(COV_MIN) $(BUILD_JOBS)
+	RUSTFLAGS="-D warnings" $(CARGO) llvm-cov --workspace --all-features --doctests --lcov --output-path coverage/lcov.info --fail-under-lines $(COV_MIN) $(BUILD_JOBS)
 
 target/%/$(APP): ## Build binary in debug or release mode
 	$(CARGO) build $(BUILD_JOBS) $(if $(findstring release,$(@)),--release) --bin $(APP)