diff --git a/kmultiversx/pyproject.toml b/kmultiversx/pyproject.toml
index 1e7a149f..d2e0ac52 100644
--- a/kmultiversx/pyproject.toml
+++ b/kmultiversx/pyproject.toml
@@ -4,7 +4,7 @@ build-backend = "poetry.core.masonry.api"
 
 [tool.poetry]
 name = "kmultiversx"
-version = "0.1.74"
+version = "0.1.75"
 description = "Python tools for Elrond semantics"
 authors = [
     "Runtime Verification, Inc. <contact@runtimeverification.com>",
diff --git a/kmultiversx/src/kmultiversx/kdist/mx-semantics/elrond-config.md b/kmultiversx/src/kmultiversx/kdist/mx-semantics/elrond-config.md
index b40fbc20..805d9a52 100644
--- a/kmultiversx/src/kmultiversx/kdist/mx-semantics/elrond-config.md
+++ b/kmultiversx/src/kmultiversx/kdist/mx-semantics/elrond-config.md
@@ -50,13 +50,11 @@ module ELROND-CONFIG
 ```k
     syntax Bool ::= #hasPrefix ( String , String ) [function, total]
  // ---------------------------------------------------------------------
-    rule #hasPrefix(STR, PREFIX) => true
+    rule #hasPrefix(STR, PREFIX) => substrString(STR, 0, lengthString(PREFIX)) ==String PREFIX
       requires lengthString(STR) >=Int lengthString(PREFIX)
-       andBool substrString(STR, 0, lengthString(PREFIX)) ==String PREFIX
 
     rule #hasPrefix(STR, PREFIX) => false
-      requires notBool (       lengthString(STR) >=Int lengthString(PREFIX)
-                       andBool substrString(STR, 0, lengthString(PREFIX)) ==String PREFIX)
+      requires notBool (lengthString(STR) >=Int lengthString(PREFIX))
 ```
 
 ### Memory
diff --git a/package/version b/package/version
index 21f074df..d9ba7470 100644
--- a/package/version
+++ b/package/version
@@ -1 +1 @@
-0.1.74
+0.1.75