diff --git a/include/mbedtls/check_config.h b/include/mbedtls/check_config.h
index b64aa00..be5c548 100644
--- a/include/mbedtls/check_config.h
+++ b/include/mbedtls/check_config.h
@@ -177,7 +177,7 @@
 #endif
 
 #if defined(MBEDTLS_PKCS5_C) && !defined(MBEDTLS_MD_C)
-#error "MBEDTLS_PKCS5_C defined, but not all prerequesites"
+#error "MBEDTLS_PKCS5_C defined, but not all prerequisites"
 #endif
 
 #if defined(MBEDTLS_ENTROPY_C) && (!defined(MBEDTLS_SHA512_C) &&      \