diff --git a/ext/iconv/iconv.c b/ext/iconv/iconv.c
index 90c209cbcbf00..f8e9f95ad569d 100644
--- a/ext/iconv/iconv.c
+++ b/ext/iconv/iconv.c
@@ -1576,6 +1576,9 @@ static php_iconv_err_t _php_iconv_mime_decode(smart_str *pretval, const char *st
 						}
 
 						err = _php_iconv_appendl(pretval, ZSTR_VAL(decoded_text), ZSTR_LEN(decoded_text), cd);
+						if (err == PHP_ICONV_ERR_SUCCESS) {
+							err = _php_iconv_appendl(pretval, NULL, 0, cd);
+						}
 						zend_string_release_ex(decoded_text, 0);
 
 						if (err != PHP_ICONV_ERR_SUCCESS) {
@@ -1716,13 +1719,6 @@ static php_iconv_err_t _php_iconv_mime_decode(smart_str *pretval, const char *st
 		*next_pos = p1;
 	}
 
-	if (cd != (iconv_t)(-1)) {
-		_php_iconv_appendl(pretval, NULL, 0, cd);
-	}
-	if (cd_pl != (iconv_t)(-1)) {
-		_php_iconv_appendl(pretval, NULL, 0, cd_pl);
-	}
-
 	smart_str_0(pretval);
 out:
 	if (cd != (iconv_t)(-1)) {
diff --git a/ext/iconv/tests/gh7980.phpt b/ext/iconv/tests/gh7980.phpt
new file mode 100644
index 0000000000000..a2c875a03d9cc
--- /dev/null
+++ b/ext/iconv/tests/gh7980.phpt
@@ -0,0 +1,13 @@
+--TEST--
+Bug GH-7980 (Unexpected result for iconv_mime_decode)
+--SKIPIF--
+<?php
+if (!extension_loaded("iconv")) die("skip iconv extension not available");
+?>
+--FILE--
+<?php
+$subject = '=?windows-1258?Q?DSI_Charg=E9_de_Formation_Jean_Dupont?= <jdupont@example.fr>';
+var_dump(iconv_mime_decode($subject, ICONV_MIME_DECODE_STRICT, 'UTF-8'));
+?>
+--EXPECT--
+string(57) "DSI Chargé de Formation Jean Dupont <jdupont@example.fr>"