diff --git a/CMakeLists.txt b/CMakeLists.txt
index 46db406..012b77b 100755
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -4,10 +4,10 @@ enable_testing()
 
 project (Sailfish)
 
-set(CPACK_PACKAGE_VERSION "0.7.4")
+set(CPACK_PACKAGE_VERSION "0.7.5")
 set(CPACK_PACKAGE_VERSION_MAJOR "0")
 set(CPACK_PACKAGE_VERSION_MINOR "7")
-set(CPACK_PACKAGE_VERSION_PATCH "4")
+set(CPACK_PACKAGE_VERSION_PATCH "5")
 set(CPACK_GENERATOR "TGZ")
 set(CPACK_SOURCE_GENERATOR "TGZ")
 set(CPACK_PACKAGE_VENDOR "Carnegie Mellon University")
diff --git a/include/SailfishConfig.hpp b/include/SailfishConfig.hpp
index 6fdd59a..4ddc83d 100644
--- a/include/SailfishConfig.hpp
+++ b/include/SailfishConfig.hpp
@@ -28,8 +28,8 @@
 namespace sailfish {
 	constexpr char majorVersion[] = "0";
 	constexpr char minorVersion[] = "7";
-	constexpr char patchVersion[] = "4";
-	constexpr char version[] = "0.7.4";
+	constexpr char patchVersion[] = "5";
+	constexpr char version[] = "0.7.5";
     constexpr uint32_t indexVersion = 1;
 }
 
diff --git a/src/SailfishQuantify.cpp b/src/SailfishQuantify.cpp
index 8d4ff46..df0f48a 100644
--- a/src/SailfishQuantify.cpp
+++ b/src/SailfishQuantify.cpp
@@ -406,13 +406,15 @@ void quasiMapReads(
                           *  (https://github.com/adarob/eXpress/blob/master/src/targets.cpp)
                           *  originally written by Adam Roberts.
                           */
+                        uint32_t minVal = empDist.minValue();
+                        uint32_t maxVal = empDist.maxValue();
+                        bool validDistSupport = (maxVal > minVal);
                         double refLen = txp.RefLength;
-                        if (refLen <= empDist.median()) {
+                        if (refLen <= empDist.median() or !validDistSupport) {
                             txp.EffectiveLength = refLen;
                         } else {
-                           uint32_t mval = empDist.maxValue();
                            double effectiveLength = 0.0;
-                           for (size_t l = empDist.minValue(); l <= std::min(txp.RefLength, mval); ++l) {
+                           for (size_t l = minVal; l <= std::min(txp.RefLength, maxVal); ++l) {
                                 effectiveLength += empDist.pdf(l) * (txp.RefLength - l + 1.0);
                             }
                             txp.EffectiveLength = effectiveLength;