diff --git a/tests/checkasm/checkasm.c b/tests/checkasm/checkasm.c
index 6318d9296b..daa5438f88 100644
--- a/tests/checkasm/checkasm.c
+++ b/tests/checkasm/checkasm.c
@@ -933,10 +933,10 @@ void checkasm_report(const char *name, ...)
 }
 
 #define DEF_CHECKASM_CHECK_FUNC(type, fmt) \
-int checkasm_check_##type(const char *const file, const int line, \
+int checkasm_check_##type(const char *file, int line, \
                           const type *buf1, ptrdiff_t stride1, \
                           const type *buf2, ptrdiff_t stride2, \
-                          const int w, int h, const char *const name) \
+                          int w, int h, const char *name) \
 { \
     int y = 0; \
     stride1 /= sizeof(*buf1); \
diff --git a/tests/checkasm/checkasm.h b/tests/checkasm/checkasm.h
index e3c19510fa..f2b63ef8c8 100644
--- a/tests/checkasm/checkasm.h
+++ b/tests/checkasm/checkasm.h
@@ -308,10 +308,10 @@ typedef struct CheckasmPerf {
 #endif
 
 #define DECL_CHECKASM_CHECK_FUNC(type) \
-int checkasm_check_##type(const char *const file, const int line, \
-                          const type *const buf1, const ptrdiff_t stride1, \
-                          const type *const buf2, const ptrdiff_t stride2, \
-                          const int w, const int h, const char *const name)
+int checkasm_check_##type(const char *file, int line, \
+                          const type *buf1, ptrdiff_t stride1, \
+                          const type *buf2, ptrdiff_t stride2, \
+                          int w, int h, const char *name)
 
 DECL_CHECKASM_CHECK_FUNC(uint8_t);
 DECL_CHECKASM_CHECK_FUNC(uint16_t);