diff --git a/vibrator/aidl/vts/VtsHalVibratorTargetTest.cpp b/vibrator/aidl/vts/VtsHalVibratorTargetTest.cpp
index 53f8c0e..a8ae777 100644
--- a/vibrator/aidl/vts/VtsHalVibratorTargetTest.cpp
+++ b/vibrator/aidl/vts/VtsHalVibratorTargetTest.cpp
@@ -167,9 +167,9 @@
         EXPECT_TRUE(isUnknownOrUnsupported(status)) << status;
     }
 
-    float freqMaximumHz =
-        (bandwidthAmplitudeMap.size() * getFrequencyResolutionHz(vibrator, capabilities)) +
-        getFrequencyMinimumHz(vibrator, capabilities);
+    float freqMaximumHz = ((bandwidthAmplitudeMap.size() - 1) *
+                           getFrequencyResolutionHz(vibrator, capabilities)) +
+                          getFrequencyMinimumHz(vibrator, capabilities);
     return freqMaximumHz;
 }