diff --git a/src/lookup.cpp b/src/lookup.cpp
index 425cec7..0c40a08 100644
--- a/src/lookup.cpp
+++ b/src/lookup.cpp
@@ -12,7 +12,7 @@ template <size_t NR_SAMPLES> struct LookupBackend<NR_SAMPLES>::Impl {
   void init() {
     lookup.resize(NR_SAMPLES);
     for (size_t i = 0; i < NR_SAMPLES; ++i)
-      lookup[i] = std::sinf(i * (2.0f * float(M_PI) / NR_SAMPLES));
+      lookup[i] = sinf(i * (2.0f * float(M_PI) / NR_SAMPLES));
   }
 
   void compute_sinf(size_t n, const float *x, float *s) const {
diff --git a/src/lookup_avx.cpp b/src/lookup_avx.cpp
index a3f8df2..81c9d04 100644
--- a/src/lookup_avx.cpp
+++ b/src/lookup_avx.cpp
@@ -14,7 +14,7 @@ template <std::size_t NR_SAMPLES> struct LookupAVXBackend<NR_SAMPLES>::Impl {
   void init() {
     lookup.resize(NR_SAMPLES);
     for (std::size_t i = 0; i < NR_SAMPLES; ++i) {
-      lookup[i] = std::sinf(i * (2.0f * float(M_PI) / NR_SAMPLES));
+      lookup[i] = sinf(i * (2.0f * float(M_PI) / NR_SAMPLES));
     }
   }
 
diff --git a/src/reference.cpp b/src/reference.cpp
index e2ac788..d8be5a1 100644
--- a/src/reference.cpp
+++ b/src/reference.cpp
@@ -4,20 +4,20 @@
 
 void ReferenceBackend::compute_sinf(size_t n, const float *x, float *s) const {
   for (size_t i = 0; i < n; ++i) {
-    s[i] = std::sinf(x[i]);
+    s[i] = sinf(x[i]);
   }
 }
 
 void ReferenceBackend::compute_cosf(size_t n, const float *x, float *c) const {
   for (size_t i = 0; i < n; ++i) {
-    c[i] = std::cosf(x[i]);
+    c[i] = cosf(x[i]);
   }
 }
 
 void ReferenceBackend::compute_sincosf(size_t n, const float *x, float *s,
                                        float *c) const {
   for (size_t i = 0; i < n; ++i) {
-    s[i] = std::sinf(x[i]);
-    c[i] = std::cosf(x[i]);
+    s[i] = sinf(x[i]);
+    c[i] = cosf(x[i]);
   }
 }