diff --git a/tools/import-trace/InstructionImporter.cc b/tools/import-trace/InstructionImporter.cc
index c88034ca..f62abbca 100644
--- a/tools/import-trace/InstructionImporter.cc
+++ b/tools/import-trace/InstructionImporter.cc
@@ -24,7 +24,7 @@ bool InstructionImporter::handle_ip_event(fail::simtime_t curtime, instruction_c
 			return false;
 		}
 
-		ObjectFile *obj = dyn_cast<ObjectFile>(binary.get());
+		ObjectFile *obj = dyn_cast<ObjectFile, Binary>(binary.get());
 
 		disas.reset(new LLVMDisassembler(obj));
 		disas->disassemble();
diff --git a/tools/import-trace/RandomJumpImporter.cc b/tools/import-trace/RandomJumpImporter.cc
index a7c05262..38fa961f 100644
--- a/tools/import-trace/RandomJumpImporter.cc
+++ b/tools/import-trace/RandomJumpImporter.cc
@@ -70,7 +70,7 @@ bool RandomJumpImporter::handle_ip_event(fail::simtime_t curtime, instruction_co
 			return false;
 		}
 
-		ObjectFile *obj = dyn_cast<ObjectFile>(binary.get());
+		ObjectFile *obj = dyn_cast<ObjectFile, Binary>(binary.get());
 
 		disas.reset(new LLVMDisassembler(obj));
 		disas->disassemble();
diff --git a/tools/import-trace/RegisterImporter.cc b/tools/import-trace/RegisterImporter.cc
index ae46200d..36cbf509 100644
--- a/tools/import-trace/RegisterImporter.cc
+++ b/tools/import-trace/RegisterImporter.cc
@@ -108,7 +108,7 @@ bool RegisterImporter::handle_ip_event(fail::simtime_t curtime, instruction_coun
 			return false;
 		}
 
-		ObjectFile *obj = dyn_cast<ObjectFile>(binary.get());
+		ObjectFile *obj = dyn_cast<ObjectFile, Binary>(binary.get());
 
 		disas.reset(new LLVMDisassembler(obj));
 		disas->disassemble();