diff --git a/libunwind/src/EHHeaderParser.hpp b/libunwind/src/EHHeaderParser.hpp
--- a/libunwind/src/EHHeaderParser.hpp
+++ b/libunwind/src/EHHeaderParser.hpp
@@ -57,7 +57,8 @@
   pint_t p = ehHdrStart;
   uint8_t version = addressSpace.get8(p++);
   if (version != 1) {
-    _LIBUNWIND_LOG0("Unsupported .eh_frame_hdr version");
+    _LIBUNWIND_LOG("Unsupported .eh_frame_hdr version: %" PRIu8 " in ehdr at %"
+                   PRIx64, version, ehHdrStart);
     return false;
   }