diff --git a/mz_compat.c b/mz_compat.c
index 6fc5a0d7..872dab8f 100644
--- a/mz_compat.c
+++ b/mz_compat.c
@@ -463,7 +463,7 @@ int zipOpenNewFileInZip5(zipFile file, const char *filename, const zip_fileinfo
     if (!compat)
         return ZIP_PARAMERROR;
 
-    // The filename and comment length must fit in 16 bits.
+    /* The filename and comment length must fit in 16 bits. */
     if (filename && strlen(filename) > 0xffff)
         return ZIP_PARAMERROR;
     if (comment && strlen(comment) > 0xffff)
diff --git a/mz_os_win32.c b/mz_os_win32.c
index 2010d983..808749b5 100644
--- a/mz_os_win32.c
+++ b/mz_os_win32.c
@@ -492,7 +492,7 @@ int32_t mz_os_make_symlink(const char *path, const char *target_path) {
     if (!path)
         return MZ_PARAM_ERROR;
 
-    // Use VirtualQuery instead of GetModuleHandleW for UWP
+    /* Use VirtualQuery instead of GetModuleHandleW for UWP */
     memset(&mbi, 0, sizeof(mbi));
     VirtualQuery(VirtualQuery, &mbi, sizeof(mbi));
     kernel32_mod = (HMODULE)mbi.AllocationBase;
diff --git a/mz_zip.c b/mz_zip.c
index 758f4975..019fcbf2 100644
--- a/mz_zip.c
+++ b/mz_zip.c
@@ -1114,7 +1114,7 @@ static int32_t mz_zip_write_cd(void *handle) {
         zip->disk_number_with_cd += 1;
     mz_stream_set_prop_int64(zip->stream, MZ_STREAM_PROP_DISK_NUMBER, -1);
     if ((zip->disk_number_with_cd > 0) && (zip->open_mode & MZ_OPEN_MODE_APPEND)) {
-        // Overwrite existing central directory if using split disks
+        /* Overwrite existing central directory if using split disks */
         mz_stream_seek(zip->stream, 0, MZ_SEEK_SET);
     }
 
@@ -1129,7 +1129,7 @@ static int32_t mz_zip_write_cd(void *handle) {
         zip->disk_number_with_cd, zip->number_entry, zip->cd_offset, zip->cd_size);
 
     if (zip->cd_size == 0 && zip->number_entry > 0) {
-        // Zip does not contain central directory, open with recovery option
+        /* Zip does not contain central directory, open with recovery option */
         return MZ_FORMAT_ERROR;
     }