diff --git a/lib/main.js b/lib/main.js
index a153c2b..fc1ad30 100644
--- a/lib/main.js
+++ b/lib/main.js
@@ -23,7 +23,7 @@
 var iterationOrder = require( '@stdlib/ndarray-base-iteration-order' );
 var strides2order = require( '@stdlib/ndarray-base-strides2order' );
 var ndarray2object = require( '@stdlib/ndarray-base-ndarraylike2object' );
-var format = require( '@stdlib/string-format' );
+var format = require( '@stdlib/error-tools-fmtprodmsg' );
 var blockedaccessormap2d = require( './2d_blocked_accessors.js' );
 var blockedaccessormap3d = require( './3d_blocked_accessors.js' );
 var blockedaccessormap4d = require( './4d_blocked_accessors.js' );
@@ -226,7 +226,7 @@ function map( arrays, fcn, thisArg ) {
 	for ( i = 0; i < ndims; i++ ) {
 		d = shx[ i ];
 		if ( d !== shy[ i ] ) {
-			throw new Error( 'invalid arguments. Arrays must have the same shape.' );
+			throw new Error( format('null0d') );
 		}
 		// Note that, if one of the dimensions is `0`, the length will be `0`...
 		len *= d;
diff --git a/package.json b/package.json
index 4b3abc1..24517e1 100644
--- a/package.json
+++ b/package.json
@@ -48,7 +48,7 @@
     "@stdlib/ndarray-base-unary-loop-interchange-order": "^0.3.1",
     "@stdlib/ndarray-base-unary-tiling-block-size": "^0.2.3",
     "@stdlib/ndarray-base-vind2bind": "^0.2.3",
-    "@stdlib/string-format": "^0.2.3",
+    "@stdlib/error-tools-fmtprodmsg": "^0.2.3",
     "@stdlib/types": "^0.5.1",
     "@stdlib/error-tools-fmtprodmsg": "^0.2.3"
   },