--- a/source/fitz/writer.c
+++ b/source/fitz/writer.c
@@ -169,7 +169,7 @@ fz_new_document_writer(fz_context *ctx, const char *path, const char *explicit_f
                format = strrchr(path, '.');
        while (format)
        {
-#ifdef FZ_ENABLE_OCR_OUTPUT
+#if FZ_ENABLE_OCR_OUTPUT
                if (is_extension(format, "ocr"))
                        return fz_new_pdfocr_writer(ctx, path, options);
 #endif
@@ -219,11 +219,11 @@ fz_new_document_writer(fz_context *ctx, const char *path, const char *explicit_f
                if (is_extension(format, "stext.json"))
                        return fz_new_text_writer(ctx, "stext.json", path, options);
 
-#ifdef FZ_ENABLE_ODT_OUTPUT
+#if FZ_ENABLE_ODT_OUTPUT
                if (is_extension(format, "odt"))
                        return fz_new_odt_writer(ctx, path, options);
 #endif
-#ifdef FZ_ENABLE_DOCX_OUTPUT
+#if FZ_ENABLE_DOCX_OUTPUT
                if (is_extension(format, "docx"))
                        return fz_new_docx_writer(ctx, path, options);
 #endif
@@ -267,11 +267,11 @@ fz_new_document_writer_with_output(fz_context *ctx, fz_output *out, const char *
        if (is_extension(format, "stext.json"))
                return fz_new_text_writer_with_output(ctx, "stext.json", out, options);
 
-#ifdef FZ_ENABLE_ODT_OUTPUT
+#if FZ_ENABLE_ODT_OUTPUT
        if (is_extension(format, "odt"))
                return fz_new_odt_writer_with_output(ctx, out, options);
 #endif
-#ifdef FZ_ENABLE_DOCX_OUTPUT
+#if FZ_ENABLE_DOCX_OUTPUT
        if (is_extension(format, "docx"))
                return fz_new_docx_writer_with_output(ctx, out, options);
 #endif