diff --git a/src/app_config.c b/src/app_config.c
index 773686b..0755404 100644
--- a/src/app_config.c
+++ b/src/app_config.c
@@ -174,8 +174,9 @@ enum ConfigError parse_app_config(void) {
     struct IniConfig ini;
     memset(&ini, 0, sizeof(struct IniConfig));
 
-    if (!open_config(&ini, "./divinus.yaml") &&
-            !open_config(&ini, "/etc/divinus.yaml")) {
+    FILE *file;
+    open_app_config(&file, "r");
+    if (!open_config(&ini, &file))  {
         printf("Can't find config divinus.yaml in:\n"
             "    ./divinus.yaml\n    /etc/divinus.yaml\n");
         return -1;
diff --git a/src/hal/config.c b/src/hal/config.c
index 416bb55..01bc801 100644
--- a/src/hal/config.c
+++ b/src/hal/config.c
@@ -276,31 +276,30 @@ enum ConfigError parse_uint32(
     return CONFIG_OK;
 }
 
-bool open_config(struct IniConfig *ini, const char *path) {
-    FILE *file = fopen(path, "rb");
-    if (!file)
+bool open_config(struct IniConfig *ini, FILE **file) {
+    if (!*file)
         return false;
 
-    fseek(file, 0, SEEK_END);
-    size_t length = ftell(file);
-    fseek(file, 0, SEEK_SET);
+    fseek(*file, 0, SEEK_END);
+    size_t length = ftell(*file);
+    fseek(*file, 0, SEEK_SET);
 
     ini->str = malloc(length + 1);
     if (!ini->str) {
         printf("Can't allocate buf in parse_sensor_config\n");
-        fclose(file);
+        fclose(*file);
         return false;
     }
 
-    size_t n = fread(ini->str, 1, length, file);
+    size_t n = fread(ini->str, 1, length, *file);
     if (n != length) {
-        printf("Can't read all file %s\n", path);
-        fclose(file);
+        printf("Can't read all file\n");
+        fclose(*file);
         free(ini->str);
         return false;
     }
 
-    fclose(file);
+    fclose(*file);
     ini->str[length] = 0;
 
     return true;
diff --git a/src/hal/config.h b/src/hal/config.h
index 5f2f863..8d201ac 100644
--- a/src/hal/config.h
+++ b/src/hal/config.h
@@ -34,7 +34,7 @@ enum ConfigError {
     CONFIG_SENSOR_NOT_FOUND,
 };
 
-bool open_config(struct IniConfig *ini, const char *path);
+bool open_config(struct IniConfig *ini, FILE **file);
 enum ConfigError find_sections(struct IniConfig *ini);
 enum ConfigError section_pos(
     struct IniConfig *ini, const char *section, int *start_pos, int *end_pos);
diff --git a/src/hal/hisi/v1_config.h b/src/hal/hisi/v1_config.h
index 518e295..92342eb 100644
--- a/src/hal/hisi/v1_config.h
+++ b/src/hal/hisi/v1_config.h
@@ -449,7 +449,8 @@ static enum ConfigError v1_parse_sensor_config(char *path, v1_config_impl *confi
     enum ConfigError err;
 
     // load config file to string
-    if (!open_config(&ini, path))
+    FILE *file = fopen(path, "r");
+    if (!open_config(&ini, &file))
         return (enum ConfigError)-1;
 
     find_sections(&ini);
diff --git a/src/hal/hisi/v2_config.h b/src/hal/hisi/v2_config.h
index 2c21003..5b046d1 100644
--- a/src/hal/hisi/v2_config.h
+++ b/src/hal/hisi/v2_config.h
@@ -447,7 +447,8 @@ static enum ConfigError v2_parse_sensor_config(char *path, v2_config_impl *confi
     enum ConfigError err;
 
     // load config file to string
-    if (!open_config(&ini, path))
+    FILE *file = fopen(path, "r");
+    if (!open_config(&ini, &file))
         return (enum ConfigError)-1;
 
     find_sections(&ini);
diff --git a/src/hal/hisi/v3_config.h b/src/hal/hisi/v3_config.h
index 4da5cf0..6364987 100644
--- a/src/hal/hisi/v3_config.h
+++ b/src/hal/hisi/v3_config.h
@@ -445,7 +445,8 @@ static enum ConfigError v3_parse_sensor_config(char *path, v3_config_impl *confi
     enum ConfigError err;
 
     // load config file to string
-    if (!open_config(&ini, path))
+    FILE *file = fopen(path, "r");
+    if (!open_config(&ini, &file))
         return (enum ConfigError)-1;
 
     find_sections(&ini);
diff --git a/src/hal/hisi/v4_config.h b/src/hal/hisi/v4_config.h
index 608e646..49a9d25 100644
--- a/src/hal/hisi/v4_config.h
+++ b/src/hal/hisi/v4_config.h
@@ -331,7 +331,8 @@ static enum ConfigError v4_parse_sensor_config(char *path, v4_config_impl *confi
     enum ConfigError err;
 
     // load config file to string
-    if (!open_config(&ini, path))
+    FILE *file = fopen(path, "r");
+    if (!open_config(&ini, &file))
         return (enum ConfigError)-1;
 
     find_sections(&ini);