diff --git a/src/cmd/link/internal/ld/ldelf.go b/src/cmd/link/internal/ld/ldelf.go
index a321016999..c088b07e91 100644
--- a/src/cmd/link/internal/ld/ldelf.go
+++ b/src/cmd/link/internal/ld/ldelf.go
@@ -765,6 +765,13 @@ func ldelf(f *obj.Biobuf, pkg string, length int64, pn string) {
 			if strings.HasPrefix(sym.name, ".Linfo_string") { // clang does this
 				continue
 			}
+
+			if sym.name == "" && sym.type_ == 0 && sect.name == ".debug_str" {
+				// This reportedly happens with clang 3.7 on ARM.
+				// See issue 13139.
+				continue
+			}
+
 			Diag("%s: sym#%d: ignoring %s in section %d (type %d)", pn, i, sym.name, sym.shndx, sym.type_)
 			continue
 		}
diff --git a/src/cmd/link/internal/ld/lib.go b/src/cmd/link/internal/ld/lib.go
index f3ca4b8f27..f0e051173b 100644
--- a/src/cmd/link/internal/ld/lib.go
+++ b/src/cmd/link/internal/ld/lib.go
@@ -1807,7 +1807,7 @@ func genasmsym(put func(*LSym, string, int, int64, int64, int, *LSym)) {
 	}
 
 	for s := Ctxt.Allsym; s != nil; s = s.Allsym {
-		if s.Hide != 0 || (s.Name[0] == '.' && s.Version == 0 && s.Name != ".rathole") {
+		if s.Hide != 0 || ((s.Name == "" || s.Name[0] == '.') && s.Version == 0 && s.Name != ".rathole") {
 			continue
 		}
 		switch s.Type & obj.SMASK {