diff --git a/docs/examples/simplessl.c b/docs/examples/simplessl.c
index f9c0a78d60..220dc62bcd 100644
--- a/docs/examples/simplessl.c
+++ b/docs/examples/simplessl.c
@@ -66,7 +66,7 @@ int main(void)
 #ifdef USE_ENGINE
   pKeyName  = "rsa_test";
   pKeyType  = "ENG";
-  pEngine   = "chil";            /* for nChiper HSM... */
+  pEngine   = "chil";            /* for nCipher HSM... */
 #else
   pKeyName  = "testkey.pem";
   pKeyType  = "PEM";
diff --git a/include/curl/curl.h b/include/curl/curl.h
index 7ef5b99349..f592c5c918 100644
--- a/include/curl/curl.h
+++ b/include/curl/curl.h
@@ -2750,7 +2750,7 @@ CURL_EXTERN CURLcode curl_global_init(long flags);
  * for each application that uses libcurl. This function can be used to
  * initialize libcurl and set user defined memory management callback
  * functions. Users can implement memory management routines to check for
- * memory leaks, check for mis-use of the curl library etc. User registered
+ * memory leaks, check for misuse of the curl library etc. User registered
  * callback routines will be invoked by this library instead of the system
  * memory management routines like malloc, free etc.
  */
diff --git a/lib/asyn-thrdd.c b/lib/asyn-thrdd.c
index 1ede868820..49daf2fd69 100644
--- a/lib/asyn-thrdd.c
+++ b/lib/asyn-thrdd.c
@@ -242,7 +242,7 @@ CURL_STDCALL getaddrinfo_thread(void *arg)
 #endif
       /* DNS has been resolved, signal client task */
       if(wakeup_write(addr_ctx->sock_pair[1], buf, sizeof(buf)) < 0) {
-        /* update sock_erro to errno */
+        /* update sock_error to errno */
         addr_ctx->sock_error = SOCKERRNO;
       }
     }