diff --git a/include/scrimmage/parse/MissionParse.h b/include/scrimmage/parse/MissionParse.h
index f651ac94b..d90d1caff 100644
--- a/include/scrimmage/parse/MissionParse.h
+++ b/include/scrimmage/parse/MissionParse.h
@@ -89,7 +89,7 @@ class MissionParse {
     double t0();
     double tend();
     double dt();
-    double motion_multiplier();
+    int motion_multiplier();
     double time_warp();
     void set_time_warp(double warp);
     bool start_paused();
diff --git a/missions/uuv-ex1.xml b/missions/uuv-ex1.xml
index b50c12aad..c5c195526 100644
--- a/missions/uuv-ex1.xml
+++ b/missions/uuv-ex1.xml
@@ -4,7 +4,7 @@
     name="Straight flying">
 
   <run start="0.0" end="1000" dt="0.1"
-       motion_multiplier="12.5"
+       motion_multiplier="12"
        time_warp="20"
        enable_gui="true"
        network_gui="false"
diff --git a/src/parse/MissionParse.cpp b/src/parse/MissionParse.cpp
index 0c504aebb..4a11348e9 100644
--- a/src/parse/MissionParse.cpp
+++ b/src/parse/MissionParse.cpp
@@ -165,7 +165,7 @@ bool MissionParse::parse(const std::string &filename) {
         } else if (attr_str == "dt") {
             dt_ = std::stod(attr->value());
         } else if (attr_str ==  "motion_multiplier") {
-            motion_multiplier_ = std::stod(attr->value());
+            motion_multiplier_ = std::stoi(attr->value());
         } else if (attr_str == "time_warp") {
             time_warp_ = std::stod(attr->value());
         } else if (attr_str == "enable_gui") {
@@ -783,7 +783,7 @@ double MissionParse::dt() { return dt_; }
 
 void MissionParse::set_dt(const double& dt) { dt_ = dt; }
 
-double MissionParse::motion_multiplier() { return motion_multiplier_; }
+int MissionParse::motion_multiplier() { return motion_multiplier_; }
 
 double MissionParse::time_warp() { return time_warp_; }