diff --git a/output/http_jpeg.c b/output/http_jpeg.c
index 9b2f593..aeecffa 100644
--- a/output/http_jpeg.c
+++ b/output/http_jpeg.c
@@ -8,7 +8,7 @@
 #include "device/buffer_lock.h"
 
 #define SNAPSHOT_TIMEOUT_MS 3000
-#define SNAPSHOT_DEFAULT_DELAY_PARAM "300"
+#define SNAPSHOT_DEFAULT_DELAY_PARAM 300
 
 #define PART_BOUNDARY "123456789000000000000987654321"
 #define CONTENT_TYPE "image/jpeg"
@@ -47,15 +47,18 @@ int http_snapshot_buf_part(buffer_lock_t *buf_lock, buffer_t *buf, int frame, ht
 
 void http_snapshot(http_worker_t *worker, FILE *stream)
 {
+  int max_delay_value = SNAPSHOT_DEFAULT_DELAY_PARAM;
+
   // passing the max_delay=0 will ensure that frame is capture at this exact moment
-  const char *max_delay = http_get_param(worker, "max_delay");
-  if (!max_delay) {
-    max_delay = SNAPSHOT_DEFAULT_DELAY_PARAM;
+  char *max_delay = http_get_param(worker, "max_delay");
+  if (max_delay) {
+    max_delay_value = atoi(max_delay);
+    free(max_delay);
   }
 
   http_snapshot_t snapshot = {
     .stream = stream,
-    .start_time_us = get_monotonic_time_us(NULL, NULL) - atoi(max_delay) * 1000
+    .start_time_us = get_monotonic_time_us(NULL, NULL) - max_delay_value * 1000
   };
 
   int n = buffer_lock_write_loop(&snapshot_lock, 1, SNAPSHOT_TIMEOUT_MS,
diff --git a/util/http/http.c b/util/http/http.c
index 0957ff7..f50020a 100644
--- a/util/http/http.c
+++ b/util/http/http.c
@@ -87,12 +87,12 @@ void *http_enum_params(http_worker_t *worker, FILE *stream, http_param_fn fn, vo
 static void *http_get_param_fn(struct http_worker_s *worker, FILE *stream, const char *key, const char *value, void *opaque)
 {
   if (!strcmp(key, opaque))
-    return (void*)value;
+    return (void*)strdup(value);
 
   return NULL;
 }
 
-const char *http_get_param(http_worker_t *worker, const char *key)
+char *http_get_param(http_worker_t *worker, const char *key)
 {
   return http_enum_params(worker, NULL, http_get_param_fn, (void*)key);
 }
diff --git a/util/http/http.h b/util/http/http.h
index f9b0e6c..cf7b354 100644
--- a/util/http/http.h
+++ b/util/http/http.h
@@ -62,4 +62,4 @@ void http_400(FILE *stream, const char *data);
 void http_404(FILE *stream, const char *data);
 void http_500(FILE *stream, const char *data);
 void *http_enum_params(http_worker_t *worker, FILE *stream, http_param_fn fn, void *opaque);
-const char *http_get_param(http_worker_t *worker, const char *key);
+char *http_get_param(http_worker_t *worker, const char *key);