diff --git a/apps/mpeg.c b/apps/mpeg.c
index 45b3619336..dcccb98d17 100644
--- a/apps/mpeg.c
+++ b/apps/mpeg.c
@@ -2849,7 +2849,7 @@ void audio_init(void)
                   IF_PRIO(, PRIORITY_SYSTEM)
 		          IF_COP(, CPU));
 
-    memset(trackdata, sizeof(trackdata), 0);
+    memset(trackdata, 0, sizeof(trackdata));
 
 #if (CONFIG_CODEC == MAS3587F) && !defined(SIMULATOR)
     if (HW_MASK & PR_ACTIVE_HIGH)
diff --git a/firmware/common/dir_uncached.c b/firmware/common/dir_uncached.c
index 1e2c7bb7cb..c6af145930 100644
--- a/firmware/common/dir_uncached.c
+++ b/firmware/common/dir_uncached.c
@@ -268,7 +268,7 @@ int mkdir_uncached(const char *name)
         }
     }
 
-    memset(&newdir, sizeof(struct fat_dir), 0);
+    memset(&newdir, 0, sizeof(struct fat_dir));
     
     rc = fat_create_dir(basename, &newdir, &(dir->fatdir));
     closedir_uncached(dir);