Index: src/exceptions/OFException.m
==================================================================
--- src/exceptions/OFException.m
+++ src/exceptions/OFException.m
@@ -142,21 +142,26 @@
 	for (i = 0; i < OF_BACKTRACE_SIZE && _backtrace[i] != NULL; i++) {
 # ifdef HAVE_DLADDR
 		Dl_info info;
 
 		if (dladdr(_backtrace[i], &info)) {
-			ptrdiff_t offset = (char*)_backtrace[i] -
-			    (char*)info.dli_saddr;
-
-			if (info.dli_sname == NULL)
-				info.dli_sname = "??";
-
-			[backtrace addObject:
-			    [OFString stringWithFormat: @"%p <%s+%td> at %s",
-							_backtrace[i],
-							info.dli_sname, offset,
-							info.dli_fname]];
+			OFString *frame;
+
+			if (info.dli_sname != NULL) {
+				ptrdiff_t offset = (char*)_backtrace[i] -
+				    (char*)info.dli_saddr;
+
+				frame = [OFString stringWithFormat:
+				    @"%p <%s+%td> at %s",
+				    _backtrace[i], info.dli_sname, offset,
+				    info.dli_fname];
+			} else
+				frame = [OFString stringWithFormat:
+				    @"%p <?" @"?> at %s",
+				    _backtrace[i], info.dli_fname];
+
+			[backtrace addObject: frame];
 		} else
 # endif
 			[backtrace addObject:
 			    [OFString stringWithFormat: @"%p", _backtrace[i]]];
 	}