diff --git a/lib/runtime-c-api/tests/test-import-function.c b/lib/runtime-c-api/tests/test-import-function.c
index b28465683..72be9afbc 100644
--- a/lib/runtime-c-api/tests/test-import-function.c
+++ b/lib/runtime-c-api/tests/test-import-function.c
@@ -4,14 +4,14 @@
 #include <stdint.h>
 #include <string.h>
 
-static print_str_called = false;
-static memory_len = 0;
-static ptr_len = 0;
+static bool print_str_called = false;
+static int memory_len = 0;
+static int ptr_len = 0;
 static char actual_str[14] = {};
 
 void print_str(wasmer_instance_context_t *ctx, int32_t ptr, int32_t len)
 {
-    wasmer_memory_t *memory = wasmer_instance_context_memory(ctx, 0);
+    const wasmer_memory_t *memory = wasmer_instance_context_memory(ctx, 0);
     uint32_t mem_len = wasmer_memory_length(memory);
     uint8_t *mem_bytes = wasmer_memory_data(memory);
     for (int32_t idx = 0; idx < len; idx++)
@@ -31,16 +31,16 @@ int main()
     wasmer_value_tag returns_sig[] = {};
 
     printf("Creating new func\n");
-    wasmer_import_func_t *func = wasmer_import_func_new(print_str, params_sig, 2, returns_sig, 0);
+    const wasmer_import_func_t *func = wasmer_import_func_new((void (*)(void *)) print_str, params_sig, 2, returns_sig, 0);
     wasmer_import_t import;
 
     char *module_name = "env";
     wasmer_byte_array module_name_bytes;
-    module_name_bytes.bytes = module_name;
+    module_name_bytes.bytes = (const uint8_t *) module_name;
     module_name_bytes.bytes_len = strlen(module_name);
     char *import_name = "print_str";
     wasmer_byte_array import_name_bytes;
-    import_name_bytes.bytes = import_name;
+    import_name_bytes.bytes = (const uint8_t *) import_name;
     import_name_bytes.bytes_len = strlen(import_name);
 
     import.module_name = module_name_bytes;
@@ -88,4 +88,4 @@ int main()
     printf("Destroy instance\n");
     wasmer_instance_destroy(instance);
     return 0;
-}
\ No newline at end of file
+}