diff --git a/platform/commonUI/formats/bundle.json b/platform/commonUI/formats/bundle.json
index 798bcc7369..99925657b2 100644
--- a/platform/commonUI/formats/bundle.json
+++ b/platform/commonUI/formats/bundle.json
@@ -7,7 +7,7 @@
                 "provides": "formatService",
                 "type": "provider",
                 "implementation": "FormatProvider.js",
-                "depends": [ "formats[]", "$log" ]
+                "depends": [ "formats[]" ]
             }
         ],
         "formats": [
diff --git a/platform/commonUI/formats/src/FormatProvider.js b/platform/commonUI/formats/src/FormatProvider.js
index 421d9bfd39..bcc0e64157 100644
--- a/platform/commonUI/formats/src/FormatProvider.js
+++ b/platform/commonUI/formats/src/FormatProvider.js
@@ -85,7 +85,7 @@ define([
      * @param {Array.<function(new : Format)>} format constructors,
      *        from the `formats` extension category.
      */
-    function FormatProvider(formats, $log) {
+    function FormatProvider(formats) {
         var formatMap = {};
 
         function addToMap(Format) {
@@ -97,13 +97,12 @@ define([
 
         formats.forEach(addToMap);
         this.formatMap = formatMap;
-        this.$log = $log;
     }
 
     FormatProvider.prototype.getFormat = function (key) {
         var format = this.formatMap[key];
         if (!format) {
-            this.$log.warn("No format found for " + key);
+            throw new Error("FormatProvider: No format found for " + key);
         }
         return format;
     };
diff --git a/platform/commonUI/formats/test/FormatProviderSpec.js b/platform/commonUI/formats/test/FormatProviderSpec.js
index 2a102909cc..4f68c106f7 100644
--- a/platform/commonUI/formats/test/FormatProviderSpec.js
+++ b/platform/commonUI/formats/test/FormatProviderSpec.js
@@ -41,14 +41,13 @@ define(
                         [ 'parse', 'validate', 'format' ]
                     );
                 });
-                mockLog = jasmine.createSpyObj('$log', ['error', 'warn']);
                 // Return constructors
                 mockFormats = KEYS.map(function (k, i) {
                     function MockFormat() { return mockFormatInstances[i]; }
                     MockFormat.key = k;
                     return MockFormat;
                 });
-                provider = new FormatProvider(mockFormats, mockLog);
+                provider = new FormatProvider(mockFormats);
             });
 
             it("looks up formats by key", function () {
@@ -58,11 +57,10 @@ define(
                 });
             });
 
-            it("warns about unknown formats", function () {
-                provider.getFormat('a'); // known format
-                expect(mockLog.warn).not.toHaveBeenCalled();
-                provider.getFormat('some-unknown-format');
-                expect(mockLog.warn).toHaveBeenCalledWith(jasmine.any(String));
+            it("throws an error about unknown formats", function () {
+                expect(function () {
+                    provider.getFormat('some-unknown-format');
+                }).toThrow();
             });
 
         });