diff --git a/tests/utests/schema_comparison/test_schema_comparison.c b/tests/utests/schema_comparison/test_schema_comparison.c
index 5beac6b27e..d10fce14be 100644
--- a/tests/utests/schema_comparison/test_schema_comparison.c
+++ b/tests/utests/schema_comparison/test_schema_comparison.c
@@ -135,7 +135,7 @@ schema_comparison(struct sc_state *st, const char *module_name)
     fseek(st->f, 0, SEEK_SET);
     st->exp = malloc(size + 1);
     assert_non_null(st->exp);
-    assert_int_equal(size, fread(st->exp, 1, size, st->f));
+    size = fread(st->exp, 1, size, st->f);
     st->exp[size] = '\0';
 
     /* compare the output */
diff --git a/tests/yangupdate/complex_update/test.c b/tests/yangupdate/complex_update/test.c
index 6eae091823..ceeba1007a 100644
--- a/tests/yangupdate/complex_update/test.c
+++ b/tests/yangupdate/complex_update/test.c
@@ -104,7 +104,7 @@ test_update_01_01_to_01_20(void **state)
     rewind(st->f);
     st->str1 = malloc(size + 1);
     assert_non_null(st->str1);
-    fread(st->str1, 1, size, st->f);
+    size = fread(st->str1, 1, size, st->f);
     st->str1[size] = '\0';
     assert_string_equal(st->str2, st->str1);
 }
@@ -140,7 +140,7 @@ test_update_01_10_to_01_15(void **state)
     rewind(st->f);
     st->str1 = malloc(size + 1);
     assert_non_null(st->str1);
-    fread(st->str1, 1, size, st->f);
+    size = fread(st->str1, 1, size, st->f);
     st->str1[size] = '\0';
     assert_string_equal(st->str2, st->str1);
 }
@@ -177,7 +177,7 @@ test_update_01_15_to_01_20(void **state)
     rewind(st->f);
     st->str1 = malloc(size + 1);
     assert_non_null(st->str1);
-    fread(st->str1, 1, size, st->f);
+    size = fread(st->str1, 1, size, st->f);
     st->str1[size] = '\0';
     assert_string_equal(st->str2, st->str1);
 }
diff --git a/tools/update/CMakeLists.txt b/tools/update/CMakeLists.txt
index a734688dbf..49bdf2cd64 100644
--- a/tools/update/CMakeLists.txt
+++ b/tools/update/CMakeLists.txt
@@ -42,6 +42,7 @@ endif()
 
 # yang update library
 add_library(${LIB_NAME} STATIC ${lib_src})
+target_compile_definitions(${LIB_NAME} PUBLIC LIBYANG_BUILD)
 target_include_directories(${LIB_NAME} PRIVATE ${CMAKE_CURRENT_SOURCE_DIR} ${CMAKE_CURRENT_BINARY_DIR} ${PROJECT_BINARY_DIR})
 get_target_property(yang_linked_libraries yang LINK_LIBRARIES)
 target_link_libraries(${LIB_NAME} $<TARGET_OBJECTS:yangobj> ${yang_linked_libraries})
diff --git a/tools/update/yang_update.c b/tools/update/yang_update.c
index 0ea811a09d..f036d3e38a 100644
--- a/tools/update/yang_update.c
+++ b/tools/update/yang_update.c
@@ -583,7 +583,7 @@ yu_module_imp_clb(const char *mod_name, const char *mod_rev, const char *submod_
         rc = LY_EMEM;
         goto cleanup;
     }
-    fread(data, 1, size, f);
+    size = fread(data, 1, size, f);
     data[size] = '\0';
 
     *format = fmt;