diff --git a/src/REAXFF/reaxff_tool_box.cpp b/src/REAXFF/reaxff_tool_box.cpp
index 5ea87ca769..550668197c 100644
--- a/src/REAXFF/reaxff_tool_box.cpp
+++ b/src/REAXFF/reaxff_tool_box.cpp
@@ -1,4 +1,3 @@
-// clang-format off
 /*----------------------------------------------------------------------
   PuReMD - Purdue ReaxFF Molecular Dynamics Program
 
@@ -35,69 +34,81 @@
 
 namespace ReaxFF {
 
-  /* safe malloc */
-  void *smalloc(LAMMPS_NS::Error *error_ptr, rc_bigint n, const std::string &name)
-  {
-    void *ptr;
+/* safe malloc */
+void *smalloc(LAMMPS_NS::Error *error_ptr, rc_bigint n, const std::string &name)
+{
+  void *ptr;
 
-    if (n <= 0) {
-      auto errmsg = fmt::format("Invalid size {} for array {}. Returning NULL.", n, name);
-      if (error_ptr) error_ptr->one(FLERR,errmsg);
-      else fputs(errmsg.c_str(),stderr);
+  if (n <= 0) {
+    auto errmsg = fmt::format("Invalid size {} for array {}. Returning NULL.", n, name);
+    if (error_ptr)
+      error_ptr->one(FLERR, errmsg);
+    else
+      fputs(errmsg.c_str(), stderr);
 
-      return nullptr;
-    }
-
-    ptr = malloc(n);
-    if (ptr == nullptr) {
-      auto errmsg = fmt::format("Failed to allocate {} bytes for array {}", n, name);
-      if (error_ptr) error_ptr->one(FLERR,errmsg);
-      else fputs(errmsg.c_str(),stderr);
-    }
-
-    return ptr;
+    return nullptr;
   }
 
-  /* safe calloc */
-  void *scalloc(LAMMPS_NS::Error *error_ptr, rc_bigint n, rc_bigint size, const std::string &name)
-  {
-    void *ptr;
-
-    if (n <= 0) {
-      auto errmsg = fmt::format("Invalid size {} for array {}. Returning NULL.\n", n, name);
-      if (error_ptr) error_ptr->one(FLERR,errmsg);
-      else fputs(errmsg.c_str(),stderr);
-      return nullptr;
-    }
-
-    if (size <= 0) {
-      auto errmsg = fmt::format("Elements size for array {} is {}. Returning NULL", name, size);
-      if (error_ptr) error_ptr->one(FLERR,errmsg);
-      else fputs(errmsg.c_str(),stderr);
-      return nullptr;
-    }
-
-    ptr = calloc(n, size);
-    if (ptr == nullptr) {
-      auto errmsg = fmt::format("Failed to allocate {} bytes for array {}", n*size, name);
-      if (error_ptr) error_ptr->one(FLERR,errmsg);
-      else fputs(errmsg.c_str(),stderr);
-    }
-
-    return ptr;
+  ptr = malloc(n);
+  if (ptr == nullptr) {
+    auto errmsg = fmt::format("Failed to allocate {} bytes for array {}", n, name);
+    if (error_ptr)
+      error_ptr->one(FLERR, errmsg);
+    else
+      fputs(errmsg.c_str(), stderr);
   }
 
-  /* safe free */
-  void sfree(LAMMPS_NS::Error *error_ptr, void *ptr, const std::string &name)
-  {
-    if (ptr == nullptr) {
-      auto errmsg = std::string("Trying to free the already free()'d pointer: ") + name;
-      if (error_ptr) error_ptr->one(FLERR, errmsg);
-      else fputs(errmsg.c_str(),stderr);
-      return;
-    }
-
-    free(ptr);
-    ptr = nullptr;
-  }
+  return ptr;
 }
+
+/* safe calloc */
+void *scalloc(LAMMPS_NS::Error *error_ptr, rc_bigint n, rc_bigint size, const std::string &name)
+{
+  void *ptr;
+
+  if (n <= 0) {
+    auto errmsg = fmt::format("Invalid size {} for array {}. Returning NULL.\n", n, name);
+    if (error_ptr)
+      error_ptr->one(FLERR, errmsg);
+    else
+      fputs(errmsg.c_str(), stderr);
+    return nullptr;
+  }
+
+  if (size <= 0) {
+    auto errmsg = fmt::format("Elements size for array {} is {}. Returning NULL", name, size);
+    if (error_ptr)
+      error_ptr->one(FLERR, errmsg);
+    else
+      fputs(errmsg.c_str(), stderr);
+    return nullptr;
+  }
+
+  ptr = calloc(n, size);
+  if (ptr == nullptr) {
+    auto errmsg = fmt::format("Failed to allocate {} bytes for array {}", n * size, name);
+    if (error_ptr)
+      error_ptr->one(FLERR, errmsg);
+    else
+      fputs(errmsg.c_str(), stderr);
+  }
+
+  return ptr;
+}
+
+/* safe free */
+void sfree(LAMMPS_NS::Error *error_ptr, void *ptr, const std::string &name)
+{
+  if (ptr == nullptr) {
+    auto errmsg = std::string("Trying to free the already free()'d pointer: ") + name;
+    if (error_ptr)
+      error_ptr->one(FLERR, errmsg);
+    else
+      fputs(errmsg.c_str(), stderr);
+    return;
+  }
+
+  free(ptr);
+  ptr = nullptr;
+}
+}    // namespace ReaxFF