diff --git a/libuavcan/include/uavcan/marshal/array.hpp b/libuavcan/include/uavcan/marshal/array.hpp
index 44346c4552..d80e1544b3 100644
--- a/libuavcan/include/uavcan/marshal/array.hpp
+++ b/libuavcan/include/uavcan/marshal/array.hpp
@@ -503,7 +503,8 @@ public:
         const SizeType max_size = capacity() - size();
 
         // We have one extra byte for the null terminator, hence +1
-        const int ret = std::snprintf(reinterpret_cast<char*>(ptr), max_size + 1, format, value);
+        using namespace std; // For snprintf()
+        const int ret = snprintf(reinterpret_cast<char*>(ptr), max_size + 1, format, value);
 
         for (int i = 0; i < std::min(ret, int(max_size)); i++)
         {
diff --git a/libuavcan/include/uavcan/time.hpp b/libuavcan/include/uavcan/time.hpp
index 9b7c1af440..41bdf451d3 100644
--- a/libuavcan/include/uavcan/time.hpp
+++ b/libuavcan/include/uavcan/time.hpp
@@ -204,7 +204,8 @@ template <typename Stream, typename D>
 inline Stream& operator<<(Stream& s, DurationBase<D> d)
 {
     char buf[8];
-    std::snprintf(buf, sizeof(buf), "%06lu", static_cast<unsigned long>(std::abs(d.toUSec() % 1000000L)));
+    using namespace std; // For snprintf()
+    snprintf(buf, sizeof(buf), "%06lu", static_cast<unsigned long>(std::abs(d.toUSec() % 1000000L)));
     if (d.isNegative())
     {
         s << '-';
@@ -217,7 +218,8 @@ template <typename Stream, typename T, typename D>
 inline Stream& operator<<(Stream& s, TimeBase<T, D> t)
 {
     char buf[8];
-    std::snprintf(buf, sizeof(buf), "%06lu", static_cast<unsigned long>(t.toUSec() % 1000000L));
+    using namespace std; // For snprintf()
+    snprintf(buf, sizeof(buf), "%06lu", static_cast<unsigned long>(t.toUSec() % 1000000L));
     s << (t.toUSec() / 1000000L) << '.' << buf;
     return s;
 }
diff --git a/libuavcan/src/driver/uc_can.cpp b/libuavcan/src/driver/uc_can.cpp
index 75d97c2cc3..f85bd3d302 100644
--- a/libuavcan/src/driver/uc_can.cpp
+++ b/libuavcan/src/driver/uc_can.cpp
@@ -59,7 +59,7 @@ bool CanFrame::priorityHigherThan(const CanFrame& rhs) const
 
 std::string CanFrame::toString(StringRepresentation mode) const
 {
-    using std::snprintf;
+    using namespace std; // For snprintf()
 
     assert(mode == StrTight || mode == StrAligned);
 
diff --git a/libuavcan/src/transport/uc_frame.cpp b/libuavcan/src/transport/uc_frame.cpp
index 8299aad946..fb30cbe963 100644
--- a/libuavcan/src/transport/uc_frame.cpp
+++ b/libuavcan/src/transport/uc_frame.cpp
@@ -197,6 +197,7 @@ bool Frame::operator==(const Frame& rhs) const
 
 std::string Frame::toString() const
 {
+    using namespace std; // For snprintf()
     /*
      * Frame ID fields, according to UAVCAN specs:
      *  - Data Type ID
@@ -208,19 +209,19 @@ std::string Frame::toString() const
      */
     static const int BUFLEN = 100;
     char buf[BUFLEN];
-    int ofs = std::snprintf(buf, BUFLEN, "dtid=%i tt=%i snid=%i dnid=%i idx=%i last=%i tid=%i payload=[",
-                            int(data_type_id_.get()), int(transfer_type_), int(src_node_id_.get()),
-                            int(dst_node_id_.get()), int(frame_index_), int(last_frame_), int(transfer_id_.get()));
+    int ofs = snprintf(buf, BUFLEN, "dtid=%i tt=%i snid=%i dnid=%i idx=%i last=%i tid=%i payload=[",
+                       int(data_type_id_.get()), int(transfer_type_), int(src_node_id_.get()),
+                       int(dst_node_id_.get()), int(frame_index_), int(last_frame_), int(transfer_id_.get()));
 
     for (int i = 0; i < payload_len_; i++)
     {
-        ofs += std::snprintf(buf + ofs, BUFLEN - ofs, "%02x", payload_[i]);
+        ofs += snprintf(buf + ofs, BUFLEN - ofs, "%02x", payload_[i]);
         if ((i + 1) < payload_len_)
         {
-            ofs += std::snprintf(buf + ofs, BUFLEN - ofs, " ");
+            ofs += snprintf(buf + ofs, BUFLEN - ofs, " ");
         }
     }
-    ofs += std::snprintf(buf + ofs, BUFLEN - ofs, "]");
+    ofs += snprintf(buf + ofs, BUFLEN - ofs, "]");
     return std::string(buf);
 }
 
diff --git a/libuavcan/src/transport/uc_transfer_buffer.cpp b/libuavcan/src/transport/uc_transfer_buffer.cpp
index b3ce1d8161..276aa70274 100644
--- a/libuavcan/src/transport/uc_transfer_buffer.cpp
+++ b/libuavcan/src/transport/uc_transfer_buffer.cpp
@@ -15,8 +15,9 @@ namespace uavcan
  */
 std::string TransferBufferManagerKey::toString() const
 {
+    using namespace std; // For snprintf()
     char buf[24];
-    std::snprintf(buf, sizeof(buf), "nid=%i tt=%i", int(node_id_.get()), int(transfer_type_));
+    snprintf(buf, sizeof(buf), "nid=%i tt=%i", int(node_id_.get()), int(transfer_type_));
     return std::string(buf);
 }