diff --git a/include/criterion/assert.h b/include/criterion/assert.h
index 41da0ae..1959310 100644
--- a/include/criterion/assert.h
+++ b/include/criterion/assert.h
@@ -224,7 +224,7 @@
 
 // Safe array comparison assertions
 
-# if defined(__GNUC__) || defined(__cplusplus)
+# if defined(__GNUC__) || defined(__clang__) || defined(__cplusplus)
 
 #  ifdef __cplusplus
 #   define CR_ARR_COMPARE_(A, B, Size, Cmp, Result)                     \
diff --git a/include/criterion/assert_base.h b/include/criterion/assert_base.h
index 3caa62a..e390518 100644
--- a/include/criterion/assert_base.h
+++ b/include/criterion/assert_base.h
@@ -125,7 +125,7 @@ CR_END_C_API
 # define CR_FAIL_ABORT_ criterion_abort_test
 # define CR_FAIL_CONTINUES_ criterion_continue_test
 
-# ifdef __GNUC__
+# if defined(__GNUC__) || defined(__clang__)
 // We disable the format-zero-length warning because we use the validity of
 // asprintf(out, "") for empty assertion messages
 #  pragma GCC diagnostic ignored "-Wformat-zero-length"