diff --git a/tests/float/main.c b/tests/float/main.c
index 35c3cbfacb..55cd4d238f 100644
--- a/tests/float/main.c
+++ b/tests/float/main.c
@@ -36,7 +36,7 @@ int main(void)
 {
     double x = 1234567.0 / 1024.0;
 
-    puts("Testing floating point arithmetics...\n");
+    puts("Testing floating point arithmetic...\n");
 
     for (unsigned long i = 0; i < TEST_ITER; i++) {
         x += STEP;
diff --git a/tests/float/tests/01-run.py b/tests/float/tests/01-run.py
index f66775af55..4a3ef32f0a 100755
--- a/tests/float/tests/01-run.py
+++ b/tests/float/tests/01-run.py
@@ -14,7 +14,7 @@ TIMEOUT = 45
 
 
 def testfunc(child):
-    child.expect_exact("Testing floating point arithmetics...")
+    child.expect_exact("Testing floating point arithmetic...")
     child.expect_exact("[SUCCESS]", timeout=TIMEOUT)