diff --git a/src/lib-sieve/plugins/imap4flags/ext-imapflags.c b/src/lib-sieve/plugins/imap4flags/ext-imapflags.c
index 5023aef4f2aa996a815ef63d7cf06e7526c001f8..68860da0fb3aa73ec1a052b24c788fa2a1a0ffa2 100644
--- a/src/lib-sieve/plugins/imap4flags/ext-imapflags.c
+++ b/src/lib-sieve/plugins/imap4flags/ext-imapflags.c
@@ -6,8 +6,8 @@
  *
  * Authors: Stephan Bosch
  * Specification: draft-melnikov-sieve-imapflags-03.txt
- * Implementation: depricated; provided for backwards compatibility
- * Status: depricated
+ * Implementation: deprecated; provided for backwards compatibility
+ * Status: deprecated
  *
  */
  
@@ -132,7 +132,7 @@ static bool ext_imapflags_validator_extension_validate
 {
 	if ( sieve_validator_extension_loaded(valdtr, &imap4flags_extension) ) {
 		sieve_argument_validate_error(valdtr, require_arg,
-			"the (depricated) imapflags extension cannot be used "
+			"the (deprecated) imapflags extension cannot be used "
 			"together with the imap4flags extension");
 		return FALSE;
 	}
diff --git a/src/lib-sieve/sieve-extensions.c b/src/lib-sieve/sieve-extensions.c
index 6002abb5cf3656f10dc776ba2c8729182a9d704d..cd737e916cdf17b93d744750311a15ec25923e56 100644
--- a/src/lib-sieve/sieve-extensions.c
+++ b/src/lib-sieve/sieve-extensions.c
@@ -116,18 +116,18 @@ const unsigned int sieve_core_extensions_count =
 	N_ELEMENTS(sieve_core_extensions);
 
 /*
- * Depricated extensions
+ * Deprecated extensions
  */
 
 extern const struct sieve_extension imapflags_extension;
 
-const struct sieve_extension *sieve_depricated_extensions[] = {
-	/* Depricated extensions */
+const struct sieve_extension *sieve_deprecated_extensions[] = {
+	/* Deprecated extensions */
 	&imapflags_extension
 };
 
-const unsigned int sieve_depricated_extensions_count =
-	N_ELEMENTS(sieve_depricated_extensions);
+const unsigned int sieve_deprecated_extensions_count =
+	N_ELEMENTS(sieve_deprecated_extensions);
 
 /* 
  * Extensions init/deinit
@@ -145,9 +145,9 @@ bool sieve_extensions_init(void)
 		(void)sieve_extension_register(sieve_core_extensions[i], TRUE);
 	}
 
-	/* Register depricated extensions */
-	for ( i = 0; i < sieve_depricated_extensions_count; i++ ) {
-		(void)sieve_extension_register(sieve_depricated_extensions[i], FALSE);
+	/* Register deprecated extensions */
+	for ( i = 0; i < sieve_deprecated_extensions_count; i++ ) {
+		(void)sieve_extension_register(sieve_deprecated_extensions[i], FALSE);
 	}
 
 	/* More extensions can be added through plugins */