diff --git a/src/halfvec.c b/src/halfvec.c
index 95c2067..fe0de2b 100644
--- a/src/halfvec.c
+++ b/src/halfvec.c
@@ -462,7 +462,7 @@ halfvec_in(PG_FUNCTION_ARGS)
 
 		x[dim] = Float4ToHalfUnchecked(val);
 
-		if ((errno == ERANGE && isinf(val)) || (HalfIsInf(x[dim]) && !isinf(val)) || (HalfIsZero(x[dim]) && val != 0))
+		if ((errno == ERANGE && (isinf(val) || val == 0)) || (HalfIsInf(x[dim]) && !isinf(val)) || (HalfIsZero(x[dim]) && val != 0))
 			ereport(ERROR,
 					(errcode(ERRCODE_NUMERIC_VALUE_OUT_OF_RANGE),
 					 errmsg("\"%s\" is out of range for type halfvec", pt)));
diff --git a/test/expected/halfvec_input.out b/test/expected/halfvec_input.out
index 76eab16..59c8556 100644
--- a/test/expected/halfvec_input.out
+++ b/test/expected/halfvec_input.out
@@ -62,6 +62,10 @@ SELECT '[4e38,1]'::halfvec;
 ERROR:  "4e38" is out of range for type halfvec
 LINE 1: SELECT '[4e38,1]'::halfvec;
                ^
+SELECT '[1e-46,1]'::halfvec;
+ERROR:  "1e-46" is out of range for type halfvec
+LINE 1: SELECT '[1e-46,1]'::halfvec;
+               ^
 SELECT '[1,2,3'::halfvec;
 ERROR:  malformed halfvec literal: "[1,2,3"
 LINE 1: SELECT '[1,2,3'::halfvec;
diff --git a/test/sql/halfvec_input.sql b/test/sql/halfvec_input.sql
index 1ae3abd..1b16f4a 100644
--- a/test/sql/halfvec_input.sql
+++ b/test/sql/halfvec_input.sql
@@ -11,6 +11,7 @@ SELECT '[65519,-65519]'::halfvec;
 SELECT '[65520,-65520]'::halfvec;
 SELECT '[1e-8,-1e-8]'::halfvec;
 SELECT '[4e38,1]'::halfvec;
+SELECT '[1e-46,1]'::halfvec;
 SELECT '[1,2,3'::halfvec;
 SELECT '[1,2,3]9'::halfvec;
 SELECT '1,2,3'::halfvec;