diff --git a/asm/nasm.c b/asm/nasm.c
index 128e5b72..bbcc6252 100644
--- a/asm/nasm.c
+++ b/asm/nasm.c
@@ -630,7 +630,7 @@ int main(int argc, char **argv)
 
                 /* Skip blank lines if we will need a %line anyway */
                 if (linnum == -1 && !line[0])
-                    continue;
+                    goto done;
 
                 if (linnum != where.lineno) {
                     fprintf(ofile, "%%line %"PRId32"%+"PRId32" %s\n",
@@ -640,6 +640,9 @@ int main(int argc, char **argv)
 
                 fputs(line, ofile);
                 fputc('\n', ofile);
+
+            done:
+                nasm_free(line);
             }
 
             nasm_free(quoted_file_name);