diff --git a/README.Rmd b/README.Rmd
index 9a46df4..5cb076f 100644
--- a/README.Rmd
+++ b/README.Rmd
@@ -16,8 +16,8 @@ knitr::opts_chunk$set(
 
 <!-- badges: start -->
 [![CRAN status](https://www.r-pkg.org/badges/version/secretbase?color=17411d)](https://CRAN.R-project.org/package=secretbase)
-[![R-multiverse status](https://img.shields.io/badge/dynamic/json?url=https%3A%2F%2Fcommunity.r-multiverse.org%2Fapi%2Fpackages%2Fsecretbase&query=%24.Version&label=r-multiverse)](https://community.r-multiverse.org/secretbase)
-[![secretbase status badge](https://shikokuchuo.r-universe.dev/badges/secretbase?color=e67f53)](https://shikokuchuo.r-universe.dev/secretbase)
+[![R-multiverse status](https://img.shields.io/badge/dynamic/json?url=https%3A%2F%2Fcommunity.r-multiverse.org%2Fapi%2Fpackages%2Fsecretbase&query=%24.Version&label=r-multiverse&color=17411d)](https://community.r-multiverse.org/secretbase)
+[![secretbase status badge](https://shikokuchuo.r-universe.dev/badges/secretbase?color=ff803d)](https://shikokuchuo.r-universe.dev/secretbase)
 [![R-CMD-check](https://github.com/shikokuchuo/secretbase/workflows/R-CMD-check/badge.svg)](https://github.com/shikokuchuo/secretbase/actions)
 [![codecov](https://codecov.io/gh/shikokuchuo/secretbase/graph/badge.svg)](https://app.codecov.io/gh/shikokuchuo/secretbase)
 [![DOI](https://zenodo.org/badge/745691432.svg)](https://zenodo.org/doi/10.5281/zenodo.10553139)
diff --git a/README.md b/README.md
index 51e625d..ffea88b 100644
--- a/README.md
+++ b/README.md
@@ -8,9 +8,9 @@
 [![CRAN
 status](https://www.r-pkg.org/badges/version/secretbase?color=17411d)](https://CRAN.R-project.org/package=secretbase)
 [![R-multiverse
-status](https://img.shields.io/badge/dynamic/json?url=https%3A%2F%2Fcommunity.r-multiverse.org%2Fapi%2Fpackages%2Fsecretbase&query=%24.Version&label=r-multiverse)](https://community.r-multiverse.org/secretbase)
+status](https://img.shields.io/badge/dynamic/json?url=https%3A%2F%2Fcommunity.r-multiverse.org%2Fapi%2Fpackages%2Fsecretbase&query=%24.Version&label=r-multiverse&color=17411d)](https://community.r-multiverse.org/secretbase)
 [![secretbase status
-badge](https://shikokuchuo.r-universe.dev/badges/secretbase?color=e67f53)](https://shikokuchuo.r-universe.dev/secretbase)
+badge](https://shikokuchuo.r-universe.dev/badges/secretbase?color=ff803d)](https://shikokuchuo.r-universe.dev/secretbase)
 [![R-CMD-check](https://github.com/shikokuchuo/secretbase/workflows/R-CMD-check/badge.svg)](https://github.com/shikokuchuo/secretbase/actions)
 [![codecov](https://codecov.io/gh/shikokuchuo/secretbase/graph/badge.svg)](https://app.codecov.io/gh/shikokuchuo/secretbase)
 [![DOI](https://zenodo.org/badge/745691432.svg)](https://zenodo.org/doi/10.5281/zenodo.10553139)
diff --git a/src/secret.c b/src/secret.c
index 853921f..1dbbe67 100644
--- a/src/secret.c
+++ b/src/secret.c
@@ -256,7 +256,7 @@ static void hash_file(mbedtls_sha3_context *ctx, const SEXP x) {
   size_t cur;
   
   if ((f = fopen(file, "rb")) == NULL)
-    Rf_error("file not found or no read permission at '%s'", file);
+    ERROR_FOPEN(file);
   
   setbuf(f, NULL);
   
@@ -266,7 +266,7 @@ static void hash_file(mbedtls_sha3_context *ctx, const SEXP x) {
   
   if (ferror(f)) {
     fclose(f);
-    Rf_error("file read error at '%s'", file);
+    ERROR_FREAD(file);
   }
   fclose(f);
   
diff --git a/src/secret.h b/src/secret.h
index a508fbb..db254cb 100644
--- a/src/secret.h
+++ b/src/secret.h
@@ -118,6 +118,8 @@ typedef struct nano_buf_s {
 Rf_error("write buffer insufficient"); }
 #define ERROR_OUT(x) if (x->len) R_Free(x->buf);               \
 Rf_error("serialization exceeds max length of raw vector")
+#define ERROR_FOPEN(x) Rf_error("file not found or no read permission at '%s'", x)
+#define ERROR_FREAD(x) Rf_error("file read error at '%s'", x)
 
 void clear_buffer(void *, size_t);
 SEXP hash_to_sexp(unsigned char *, size_t, int);
diff --git a/src/secret2.c b/src/secret2.c
index 801e518..d06ec54 100644
--- a/src/secret2.c
+++ b/src/secret2.c
@@ -391,7 +391,7 @@ static void hash_file(mbedtls_sha256_context *ctx, const SEXP x) {
   size_t cur;
   
   if ((f = fopen(file, "rb")) == NULL)
-    Rf_error("file not found or no read permission at '%s'", file);
+    ERROR_FOPEN(file);
   
   setbuf(f, NULL);
   
@@ -401,7 +401,7 @@ static void hash_file(mbedtls_sha256_context *ctx, const SEXP x) {
   
   if (ferror(f)) {
     fclose(f);
-    Rf_error("file read error at '%s'", file);
+    ERROR_FREAD(file);
   }
   fclose(f);
   
diff --git a/src/secret3.c b/src/secret3.c
index a25e69c..a8c3a80 100644
--- a/src/secret3.c
+++ b/src/secret3.c
@@ -198,7 +198,7 @@ static void hash_file(CSipHash *ctx, const SEXP x) {
   size_t cur;
   
   if ((f = fopen(file, "rb")) == NULL)
-    Rf_error("file not found or no read permission at '%s'", file);
+    ERROR_FOPEN(file);
   
   while ((cur = fread(buf, sizeof(char), SB_BUF_SIZE, f))) {
     c_siphash_append(ctx, buf, cur);
@@ -206,7 +206,7 @@ static void hash_file(CSipHash *ctx, const SEXP x) {
   
   if (ferror(f)) {
     fclose(f);
-    Rf_error("file read error at '%s'", file);
+    ERROR_FREAD(file);
   }
   fclose(f);