diff --git a/.github/workflows/build-master.yml b/.github/workflows/build-master.yml
index 6c15fd8..548e995 100644
--- a/.github/workflows/build-master.yml
+++ b/.github/workflows/build-master.yml
@@ -37,7 +37,6 @@ jobs:
       - run: |
           mkdir pages
           tar xf artifact.tar -C pages
-      - run: ls -R pages
       - name: aws s3 sync
         run: |
           aws configure set region eu-central-1
diff --git a/src/waforthc/waforthc.cpp b/src/waforthc/waforthc.cpp
index f34938c..c4271be 100644
--- a/src/waforthc/waforthc.cpp
+++ b/src/waforthc/waforthc.cpp
@@ -1,4 +1,5 @@
 #include <algorithm>
+#include <cerrno>
 #include <cstdlib>
 #include <cstring>
 #include <filesystem>
@@ -90,7 +91,7 @@ int runChild(const std::vector<std::string> &cmd) {
   auto pid = fork();
   if (pid == 0) {
     if (execvp(argsp[0], (char **)&argsp[0]) == -1) {
-      std::cerr << "execvp() error" << std::endl;
+      std::cerr << "error executing '" << cmd[0] << ": " << std::strerror(errno) << " (" << errno << ")" << std::endl;
       return -1;
     }
     return 0;