diff --git a/include/zipr.h b/include/zipr.h
index 350d6e68740997faaba94acbbce20e4719e682b0..c0e3684df39ce222720fea43caeee0c3ba8b3422 100644
--- a/include/zipr.h
+++ b/include/zipr.h
@@ -48,8 +48,7 @@ class Zipr_t
 		/*
 		 * These are public functions that the SDK user way want to use.
 		 */
-		virtual size_t DetermineWorstCaseInsnSize(libIRDB::Instruction_t*, bool account_for_jump = true) = 0;
-		virtual size_t DetermineWorstCaseDollopEntrySize(DollopEntry_t*, bool account_for_jump = true) = 0;
+		virtual size_t DetermineWorstCaseDollopEntrySize(DollopEntry_t*, bool account_for_fallthrough) = 0;
 
 		virtual Zipr_SDK::RangeAddress_t PlopDollopEntry(
 			DollopEntry_t *,