diff --git a/libunwind/src/EHHeaderParser.hpp b/libunwind/src/EHHeaderParser.hpp
--- a/libunwind/src/EHHeaderParser.hpp
+++ b/libunwind/src/EHHeaderParser.hpp
@@ -57,7 +57,9 @@
   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 "
+                   ".eh_frame_hdr at %" PRIx64,
+                   version, ehHdrStart);
     return false;
   }