diff --git a/libexec/trick/make_makefile_swig b/libexec/trick/make_makefile_swig
index a5fa5647..c182f248 100755
--- a/libexec/trick/make_makefile_swig
+++ b/libexec/trick/make_makefile_swig
@@ -139,6 +139,7 @@ sub write_makefile_swig() {
 
     open MAKEFILE , ">build/Makefile_swig" or die "Could not open build/Makefile_swig for writing" ;
     open PY_LINK_LIST , ">build/py_link_list" or die "Could not open build/py_link_list for writing" ;
+    open TRICKIFY_PY_LINK_LIST , ">build/trickify_py_link_list" or die "Could not open build/trickify_py_link_list for writing" ;
     print PY_LINK_LIST "build/init_swig_modules.o\n" ;
     print PY_LINK_LIST "build/top.o\n" ;
 
@@ -180,6 +181,7 @@ SWIG_I =" ;
         (my $swig_file = $file) =~ s/(\.[^.]*)?$/_py/ ;
         print MAKEFILE " \\\n    build$swig_file.i" ;
         print PY_LINK_LIST "build$swig_file.o\n" ;
+        print TRICKIFY_PY_LINK_LIST "build$swig_file.o\n" ;
     }
 
     print MAKEFILE "
@@ -234,6 +236,7 @@ all: $swig_sim_zip
 
     close MAKEFILE ;
     close PY_LINK_LIST ;
+    close TRICKIFY_PY_LINK_LIST ;
 
     open SWIGLIB , ">build/S_library_swig" or die "Could not open build/S_library_swig for writing" ;
     foreach my $file ( @files_to_process ) {
diff --git a/share/trick/makefiles/trickify.mk b/share/trick/makefiles/trickify.mk
index b7416fea..9f2ab8c9 100644
--- a/share/trick/makefiles/trickify.mk
+++ b/share/trick/makefiles/trickify.mk
@@ -103,11 +103,12 @@ TRICKIFY_PYTHON_DIR := $(abspath $(TRICKIFY_PYTHON_DIR))
 include $(dir $(lastword $(MAKEFILE_LIST)))Makefile.common
 
 BUILD_DIR := $(dir $(MAKE_OUT))
+PY_LINK_LIST := $(BUILD_DIR)trickify_py_link_list
+IO_LINK_LIST := $(BUILD_DIR)trickify_io_link_list
+LINK_LISTS := @$(IO_LINK_LIST) @$(PY_LINK_LIST)
 ifneq ($(wildcard $(BUILD_DIR)),)
-    SWIG_OBJECTS := $(shell cat $(BUILD_DIR)S_library_swig)
-    SWIG_OBJECTS := $(addprefix $(BUILD_DIR),$(addsuffix _py.o,$(basename $(SWIG_OBJECTS))))
-    IO_OBJECTS := $(shell find $(BUILD_DIR) -name "io_*.cpp")
-    IO_OBJECTS := $(IO_OBJECTS:.cpp=.o)
+    SWIG_OBJECTS := $(shell cat $(PY_LINK_LIST))
+    IO_OBJECTS   := $(shell cat $(IO_LINK_LIST))
 endif
 
 TRICK_CFLAGS   += $(TRICKIFY_CXX_FLAGS)
@@ -122,11 +123,11 @@ all: $(TRICKIFY_OBJECT_NAME) $(TRICKIFY_PYTHON_DIR)
 $(TRICKIFY_OBJECT_NAME): $(SWIG_OBJECTS) $(IO_OBJECTS) | $(dir $(TRICKIFY_OBJECT_NAME))
 	$(info $(call COLOR,Linking)    $@)
 ifeq ($(TRICKIFY_BUILD_TYPE),PLO)
-	$(call ECHO_AND_LOG,$(LD) $(LD_PARTIAL) -o $@ $^)
+	$(call ECHO_AND_LOG,$(LD) $(LD_PARTIAL) -o $@ $(LINK_LISTS))
 else ifeq ($(TRICKIFY_BUILD_TYPE),SHARED)
-	$(call ECHO_AND_LOG,$(TRICK_CXX) -shared -o $@ $^)
+	$(call ECHO_AND_LOG,$(TRICK_CXX) -shared -o $@ $(LINK_LISTS))
 else ifeq ($(TRICKIFY_BUILD_TYPE),STATIC)
-	$(call ECHO_AND_LOG,ar rcs $@ $^)
+	$(call ECHO_AND_LOG,ar rcs $@ $(LINK_LISTS))
 endif
 
 $(dir $(TRICKIFY_OBJECT_NAME)) $(BUILD_DIR) $(dir $(TRICKIFY_PYTHON_DIR)) .trick:
@@ -153,7 +154,7 @@ $(SWIG_OBJECTS:.o=.d): ;
 -include $(SWIG_OBJECTS:.o=.d)
 
 define create_convert_swig_rule
-$(BUILD_DIR)/%_py.i: /%.$1
+$(shell basename $(BUILD_DIR))/%_py.i: /%.$1
 	$$(call ECHO_AND_LOG,${TRICK_HOME}/$(LIBEXEC)/trick/convert_swig $${TRICK_CONVERT_SWIG_FLAGS} $$<)
 endef
 
diff --git a/trick_source/codegen/Interface_Code_Gen/PrintAttributes.cpp b/trick_source/codegen/Interface_Code_Gen/PrintAttributes.cpp
index 51a6f9fc..1e1fc79d 100644
--- a/trick_source/codegen/Interface_Code_Gen/PrintAttributes.cpp
+++ b/trick_source/codegen/Interface_Code_Gen/PrintAttributes.cpp
@@ -421,6 +421,7 @@ void PrintAttributes::printIOMakefile() {
     std::ofstream makefile_io_src ;
     std::ofstream makefile_ICG ;
     std::ofstream io_link_list ;
+    std::ofstream trickify_io_link_list ;
     std::ofstream ICG_processed ;
     std::ofstream ext_lib ;
 
@@ -476,10 +477,13 @@ void PrintAttributes::printIOMakefile() {
 
        io_link_list lists all io object files to be linked.
 
+       trickify_io_link_list lists all io object files to be linked for a Trickified project.
+
        ICG_process lists all header files to be used by SWIG.
      */
     makefile_ICG.open("build/Makefile_ICG") ;
     io_link_list.open("build/io_link_list") ;
+    trickify_io_link_list.open("build/trickify_io_link_list") ;
     ICG_processed.open("build/ICG_processed") ;
 
     makefile_ICG << "build/Makefile_io_src:" ;
@@ -488,6 +492,7 @@ void PrintAttributes::printIOMakefile() {
         size_t found ;
         found = (*mit).second.find_last_of(".") ;
         io_link_list << (*mit).second.substr(0,found) << ".o" << std::endl ;
+        trickify_io_link_list << (*mit).second.substr(0,found) << ".o" << std::endl ;
         ICG_processed << (*mit).first << std::endl ;
     }
     makefile_ICG.close() ;
@@ -500,6 +505,7 @@ void PrintAttributes::printIOMakefile() {
 
     io_link_list << "build/class_map.o" << std::endl ;
     io_link_list.close() ;
+    trickify_io_link_list.close() ;
 
     ext_lib.open("build/ICG_ext_lib") ;
     for ( auto& file : ext_lib_io_files ) {