diff --git a/Zend/zend_API.c b/Zend/zend_API.c
index c3d796f61da..38b6426bec6 100644
--- a/Zend/zend_API.c
+++ b/Zend/zend_API.c
@@ -199,7 +199,7 @@ ZEND_API char *zend_zval_type_name(const zval *arg) /* {{{ */
 /* }}} */
 
 #ifdef FAST_ZPP
-ZEND_API ZEND_COLD void ZEND_FASTCALL zend_wrong_paramers_count_error(int num_args, int min_num_args, int max_num_args) /* {{{ */
+ZEND_API ZEND_COLD void ZEND_FASTCALL zend_wrong_parameters_count_error(int num_args, int min_num_args, int max_num_args) /* {{{ */
 {
 	zend_function *active_function = EG(current_execute_data)->func;
 	const char *class_name = active_function->common.scope ? ZSTR_VAL(active_function->common.scope->name) : "";
@@ -215,7 +215,7 @@ ZEND_API ZEND_COLD void ZEND_FASTCALL zend_wrong_paramers_count_error(int num_ar
 }
 /* }}} */
 
-ZEND_API ZEND_COLD void ZEND_FASTCALL zend_wrong_paramer_type_error(int num, zend_expected_type expected_type, zval *arg) /* {{{ */
+ZEND_API ZEND_COLD void ZEND_FASTCALL zend_wrong_parameter_type_error(int num, zend_expected_type expected_type, zval *arg) /* {{{ */
 {
 	const char *space;
 	const char *class_name = get_active_class_name(&space);
@@ -229,7 +229,7 @@ ZEND_API ZEND_COLD void ZEND_FASTCALL zend_wrong_paramer_type_error(int num, zen
 }
 /* }}} */
 
-ZEND_API ZEND_COLD void ZEND_FASTCALL zend_wrong_paramer_class_error(int num, char *name, zval *arg) /* {{{ */
+ZEND_API ZEND_COLD void ZEND_FASTCALL zend_wrong_parameter_class_error(int num, char *name, zval *arg) /* {{{ */
 {
 	const char *space;
 	const char *class_name = get_active_class_name(&space);
diff --git a/Zend/zend_API.h b/Zend/zend_API.h
index 6f6c391074f..7b511d16ab4 100644
--- a/Zend/zend_API.h
+++ b/Zend/zend_API.h
@@ -692,9 +692,9 @@ typedef enum _zend_expected_type {
 	Z_EXPECTED_LAST
 } zend_expected_type;
 
-ZEND_API ZEND_COLD void ZEND_FASTCALL zend_wrong_paramers_count_error(int num_args, int min_num_args, int max_num_args);
-ZEND_API ZEND_COLD void ZEND_FASTCALL zend_wrong_paramer_type_error(int num, zend_expected_type expected_type, zval *arg);
-ZEND_API ZEND_COLD void ZEND_FASTCALL zend_wrong_paramer_class_error(int num, char *name, zval *arg);
+ZEND_API ZEND_COLD void ZEND_FASTCALL zend_wrong_parameters_count_error(int num_args, int min_num_args, int max_num_args);
+ZEND_API ZEND_COLD void ZEND_FASTCALL zend_wrong_parameter_type_error(int num, zend_expected_type expected_type, zval *arg);
+ZEND_API ZEND_COLD void ZEND_FASTCALL zend_wrong_parameter_class_error(int num, char *name, zval *arg);
 ZEND_API ZEND_COLD void ZEND_FASTCALL zend_wrong_callback_error(int severity, int num, char *error);
 
 #define ZPP_ERROR_OK             0
@@ -729,7 +729,7 @@ ZEND_API ZEND_COLD void ZEND_FASTCALL zend_wrong_callback_error(int severity, in
 			    (UNEXPECTED(_num_args > _max_num_args) && \
 			     EXPECTED(_max_num_args >= 0))) { \
 				if (!(_flags & ZEND_PARSE_PARAMS_QUIET)) { \
-					zend_wrong_paramers_count_error(_num_args, _min_num_args, _max_num_args); \
+					zend_wrong_parameters_count_error(_num_args, _min_num_args, _max_num_args); \
 				} \
 				error_code = ZPP_ERROR_FAILURE; \
 				break; \
@@ -747,9 +747,9 @@ ZEND_API ZEND_COLD void ZEND_FASTCALL zend_wrong_callback_error(int severity, in
 				if (error_code == ZPP_ERROR_WRONG_CALLBACK) { \
 					zend_wrong_callback_error(E_WARNING, _i, _error); \
 				} else if (error_code == ZPP_ERROR_WRONG_CLASS) { \
-					zend_wrong_paramer_class_error(_i, _error, _arg); \
+					zend_wrong_parameter_class_error(_i, _error, _arg); \
 				} else if (error_code == ZPP_ERROR_WRONG_ARG) { \
-					zend_wrong_paramer_type_error(_i, _expected_type, _arg); \
+					zend_wrong_parameter_type_error(_i, _expected_type, _arg); \
 				} \
 			} \
 			failure; \