diff --git a/gc_heap.c b/gc_heap.c
index de906f4d..ea397e96 100644
--- a/gc_heap.c
+++ b/gc_heap.c
@@ -4,6 +4,8 @@
 
 #include "gc_heap.h"
 
+#if SEXP_USE_IMAGE_LOADING
+
 #define ERR_STR_SIZE 256
 char gc_heap_err_str[ERR_STR_SIZE];
 
@@ -729,3 +731,5 @@ void sexp_gc_heap_stats_print(sexp ctx)
   printf(" ========================================\n");
   printf("    %6zu %7zu\n", total_count, total_size);
 }
+
+#endif  /* SEXP_USE_IMAGE_LOADING */
diff --git a/include/chibi/sexp.h b/include/chibi/sexp.h
index 2bc23fe0..860e1a63 100755
--- a/include/chibi/sexp.h
+++ b/include/chibi/sexp.h
@@ -1563,7 +1563,7 @@ SEXP_API sexp sexp_finalize (sexp ctx);
 
 #if SEXP_USE_GLOBAL_HEAP
 #define sexp_free_heap(heap)
-#define sexp_destroy_context(ctx)
+#define sexp_destroy_context(ctx) SEXP_TRUE
 #else
 SEXP_API void sexp_free_heap (sexp_heap heap);
 SEXP_API sexp sexp_destroy_context (sexp ctx);
diff --git a/tests/build/build-opts.txt b/tests/build/build-opts.txt
index 6321263d..ea0ce31d 100644
--- a/tests/build/build-opts.txt
+++ b/tests/build/build-opts.txt
@@ -1,5 +1,6 @@
 CPPFLAGS=-DSEXP_USE_MODULES=0
 CPPFLAGS=-DSEXP_USE_GREEN_THREADS=0
+CPPFLAGS=-DSEXP_USE_IMAGE_LOADING=0
 CPPFLAGS=-DSEXP_USE_DL=0
 CPPFLAGS=-DSEXP_USE_SIMPLIFY=0
 CPPFLAGS=-DSEXP_USE_TYPE_DEFS=0