1 files changed, 8 insertions, 3 deletions
diff --git a/src/libexpr/parser.cc b/src/libexpr/parser.cc
index 9b3e9041dfc1..fa6c4e2f3225 100644
--- a/src/libexpr/parser.cc
+++ b/src/libexpr/parser.cc
@@ -79,11 +79,16 @@ Expr unescapeStr(const char * s)
         if (c == '\\') {
             assert(*s);
             c = *s++;
-            if (c == 'n') t += "\n";
-            else if (c == 'r') t += "\r";
-            else if (c == 't') t += "\t";
+            if (c == 'n') t += '\n';
+            else if (c == 'r') t += '\r';
+            else if (c == 't') t += '\t';
             else t += c;
         }
+        else if (c == '\r') {
+            /* Normalise CR and CR/LF into LF. */
+            t += '\n';
+            if (*s == '\n') s++; /* cr/lf */
+        }
         else t += c;
     }
     return makeStr(toATerm(t));