1 files changed, 1 insertions, 1 deletions

diff --git a/src/firejail/util.c b/src/firejail/util.c
index d2e6c2799..89d0697fd 100644
--- a/src/firejail/util.c
+++ b/src/firejail/util.c
@@ -258,7 +258,7 @@ char *line_remove_spaces(const char *buf) {
         }
 
         // strip last blank character if any
-        if (*(ptr2 - 1) == ' ')
+        if (ptr2 > rv && *(ptr2 - 1) == ' ')
                 --ptr2;
         *ptr2 = '\0';
         //      if (arg_debug)