diff --git a/prism-tests/bugfixes/stratgenreach.nm b/prism-tests/bugfixes/stratgenreach.nm
new file mode 100644
index 00000000..8bc5bdc9
--- /dev/null
+++ b/prism-tests/bugfixes/stratgenreach.nm
@@ -0,0 +1,11 @@
+// bugfix: -exportstrat for MDP using -sparse, missing restriction
+// to reachable state space when initializing strategy storage vector
+
+mdp
+
+module m 
+  s: [0..2] init 0;
+
+  [a] s=0 -> 1/2:(s'=0) + 1/2:(s'=1);
+  [b] s=0 -> 1/3:(s'=2) + 2/3:(s'=1);
+endmodule
diff --git a/prism-tests/bugfixes/stratgenreach.nm.props b/prism-tests/bugfixes/stratgenreach.nm.props
new file mode 100644
index 00000000..76ba065f
--- /dev/null
+++ b/prism-tests/bugfixes/stratgenreach.nm.props
@@ -0,0 +1,2 @@
+// RESULT: 1.0
+Pmax=?[ F s=1 ]
diff --git a/prism-tests/bugfixes/stratgenreach.nm.props.args b/prism-tests/bugfixes/stratgenreach.nm.props.args
new file mode 100644
index 00000000..d2fce89e
--- /dev/null
+++ b/prism-tests/bugfixes/stratgenreach.nm.props.args
@@ -0,0 +1 @@
+-sparse -exportstrat stratgenreach.nm.props.strat
diff --git a/prism-tests/bugfixes/stratgenreach.nm.props.strat b/prism-tests/bugfixes/stratgenreach.nm.props.strat
new file mode 100644
index 00000000..2d786a38
--- /dev/null
+++ b/prism-tests/bugfixes/stratgenreach.nm.props.strat
@@ -0,0 +1 @@
+0:a
diff --git a/prism/src/prism/NondetModelChecker.java b/prism/src/prism/NondetModelChecker.java
index c1a6b446..6bc674cb 100644
--- a/prism/src/prism/NondetModelChecker.java
+++ b/prism/src/prism/NondetModelChecker.java
@@ -2048,7 +2048,10 @@ public class NondetModelChecker extends NonProbModelChecker
 				case Prism.SPARSE:
 					IntegerVector strat = null;
 					if (genStrat) {
-						JDDNode ddStrat = JDD.ITE(yes, JDD.Constant(-2), JDD.Constant(-1));
+						// prepare strategy storage for the sparse engine computation
+						JDDNode ddStrat = JDD.ITE(yes.copy(), JDD.Constant(-2), JDD.Constant(-1));
+						// restrict to the reachable state space of the model (required for conversion to integer array)
+						ddStrat = JDD.Times(ddStrat, reach.copy());
 						strat = new IntegerVector(ddStrat, allDDRowVars, odd);
 						JDD.Deref(ddStrat);
 					}