1 files changed, 1 insertions, 1 deletions

diff --git a/ifilter.c b/ifilter.c
index cd02869..8b2e8a3 100644
--- a/ifilter.c
+++ b/ifilter.c
@@ -366,7 +366,7 @@ unsigned int suhosin_input_filter(int arg, char *var, char **val, unsigned int v
         }
         
         /* Drop this variable if it begins with whitespace which is disallowed */
-        if (*var == ' ') {
+        if (isspace(*var)) {
                 if (SUHOSIN_G(disallow_ws)) {
                         suhosin_log(S_VARS, "request variable name begins with disallowed whitespace - dropped variable '%s'", var);
                         if (!SUHOSIN_G(simulation)) {