diff --git a/src/ipa/rpi/common/ipa_base.cpp b/src/ipa/rpi/common/ipa_base.cpp
index 551adadf..5df1998c 100644
--- a/src/ipa/rpi/common/ipa_base.cpp
+++ b/src/ipa/rpi/common/ipa_base.cpp
@@ -409,7 +409,7 @@ void IpaBase::prepareIsp(const PrepareParams &params)
 
 	/* Allow a 10% margin on the comparison below. */
 	Duration delta = (frameTimestamp - lastRunTimestamp_) * 1.0ns;
-	if (lastRunTimestamp_ && frameCount_ >= dropFrameCount_ &&
+	if (lastRunTimestamp_ && frameCount_ > dropFrameCount_ &&
 	    delta < controllerMinFrameDuration * 0.9) {
 		/*
 		 * Ensure we merge the previous frame's metadata with the current