diff --git a/CHANGELOG.md b/CHANGELOG.md
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,11 +1,15 @@
 # language-ats
 
-# 1.7.10.12
+# 1.7.10.3
 
+  * Fix bug whereby `&$GMP.mpz >> _` was parsed incorrectly.
+
+# 1.7.10.2
+
   * Add `Exception` instance for parse errors
   * Work with `cloref` arrows
 
-# 1.7.10.11
+# 1.7.10.1
 
   * Fix bug where left shift was printed as right shift
 
diff --git a/LICENSE b/LICENSE
--- a/LICENSE
+++ b/LICENSE
@@ -1,4 +1,4 @@
-Copyright Vanessa McHale (c) 2018-2019
+Copyright Vanessa McHale (c) 2018-2020
 
 Redistribution and use in source and binary forms, with or without modification, are permitted provided that the following conditions are met:
 
diff --git a/language-ats.cabal b/language-ats.cabal
--- a/language-ats.cabal
+++ b/language-ats.cabal
@@ -1,9 +1,9 @@
 cabal-version:   1.18
 name:            language-ats
-version:         1.7.10.2
+version:         1.7.10.3
 license:         BSD3
 license-file:    LICENSE
-copyright:       Copyright: (c) 2018-2019 Vanessa McHale
+copyright:       Copyright: (c) 2018-2020 Vanessa McHale
 maintainer:      vamchale@gmail.com
 author:          Vanessa McHale
 stability:       stable
diff --git a/src/Language/ATS/Lexer.x b/src/Language/ATS/Lexer.x
--- a/src/Language/ATS/Lexer.x
+++ b/src/Language/ATS/Lexer.x
@@ -91,10 +91,10 @@
 @box_tuple = \' ($white | @block_comment)* \(
 @box_record = \' ($white | @block_comment)* \{
 
-$in_operator = $special # [\)\(\}\{\_\[\]\,]
+$in_operator = $special # [\)\(\}\{\_\[\]\,\&]
 $in_l = $in_operator # [\<]
 $in_r = $in_operator # [\>]
-@operator = "+" | "-" | "*" | "/" | "<" | ">" | "=" | "~" | "!" | "?" | "%" | "#[" | $in_r{2,} | $in_l{2,} | $in_r{2,} $in_l+
+@operator = "+" | "-" | "*" | "/" | "<" | ">" | "=" | "~" | "!" | "?" | "%" | "#[" | "&&" | $in_r{2,} | $in_l{2,} | $in_r{2,} $in_l+
 
 @double_parens = "(" (@block_comment | $white+ | \n | "//".*)+ ")" | "()"
 @double_braces = "{" @block_comment "}" | "{}"
diff --git a/test/data/gmp-import.dats b/test/data/gmp-import.dats
new file mode 100644
--- /dev/null
+++ b/test/data/gmp-import.dats
@@ -0,0 +1,3 @@
+extern
+fn mpz_primorial_ui(x : &$GMP.mpz >> _, n : ullint) : void =
+  "mac#"
diff --git a/test/data/gmp-import.out b/test/data/gmp-import.out
new file mode 100644
--- /dev/null
+++ b/test/data/gmp-import.out
@@ -0,0 +1,3 @@
+extern
+fn mpz_primorial_ui(x : &$GMP.mpz >> _, n : ullint) : void =
+  "mac#"