diff --git a/src/gov/usgs/earthquake/nshmp/DeaggCalc.java b/src/gov/usgs/earthquake/nshmp/DeaggCalc.java
index 0df9b49598abf297b21c644dc1258279d6676fe8..b64555d1eda91f8ba8aab9f81a9a7ebf167627e2 100644
--- a/src/gov/usgs/earthquake/nshmp/DeaggCalc.java
+++ b/src/gov/usgs/earthquake/nshmp/DeaggCalc.java
@@ -173,7 +173,7 @@ public class DeaggCalc {
       .append("  ").append(USAGE_COMMAND).append(NEWLINE)
       .append(NEWLINE)
       .append("Where:").append(NEWLINE)
-      .append("  'model' is a model zip file or directory")
+      .append("  'model' is a model directory")
       .append(NEWLINE)
       .append("  'sites' is either:")
       .append(NEWLINE)
diff --git a/src/gov/usgs/earthquake/nshmp/DeaggIml.java b/src/gov/usgs/earthquake/nshmp/DeaggIml.java
index c24c83a5f9b8f45034c6c537faf48ed5b3449781..09a4716f2b88158262d0d93854b3ee91cedc1b8a 100644
--- a/src/gov/usgs/earthquake/nshmp/DeaggIml.java
+++ b/src/gov/usgs/earthquake/nshmp/DeaggIml.java
@@ -174,7 +174,7 @@ public class DeaggIml {
       .append("  ").append(USAGE_COMMAND).append(NEWLINE)
       .append(NEWLINE)
       .append("Where:").append(NEWLINE)
-      .append("  'model' is a model zip file or directory")
+      .append("  'model' is a model directory")
       .append(NEWLINE)
       .append("  'sites' is either:")
       .append(NEWLINE)
diff --git a/src/gov/usgs/earthquake/nshmp/HazardCalc.java b/src/gov/usgs/earthquake/nshmp/HazardCalc.java
index 4aa1a7e4b9a5b5faa5a925bf53acfa6afc62c825..6c45c9dda13311af98887df97406b2442ac16627 100644
--- a/src/gov/usgs/earthquake/nshmp/HazardCalc.java
+++ b/src/gov/usgs/earthquake/nshmp/HazardCalc.java
@@ -42,7 +42,7 @@ public class HazardCalc {
    * Entry point for a probabilisitic seismic hazard calculation.
    *
    * <p>Computing hazard curves requires at least 2, and at most 3, arguments.
-   * At a minimum, the path to a model zip file or directory and the site(s) at
+   * At a minimum, the path to a model directory and the site(s) at
    * which to perform calculations must be specified. Under the 2-argument
    * scenario, model initialization and calculation configuration settings are
    * drawn from the config file that <i>must</i> reside at the root of the model
@@ -263,7 +263,7 @@ public class HazardCalc {
       .append("  ").append(USAGE_COMMAND).append(NEWLINE)
       .append(NEWLINE)
       .append("Where:").append(NEWLINE)
-      .append("  'model' is a model zip file or directory")
+      .append("  'model' is a model directory")
       .append(NEWLINE)
       .append("  'sites' is either:")
       .append(NEWLINE)
diff --git a/src/gov/usgs/earthquake/nshmp/RateCalc.java b/src/gov/usgs/earthquake/nshmp/RateCalc.java
index 33b9004783dcd2825dca0f4310062397c23234f0..5ba7b1be3943db3cfcb711133affae198cfa2dc7 100644
--- a/src/gov/usgs/earthquake/nshmp/RateCalc.java
+++ b/src/gov/usgs/earthquake/nshmp/RateCalc.java
@@ -42,7 +42,7 @@ public class RateCalc {
    * Entry point for the calculation of earthquake rates and probabilities.
    *
    * <p>Computing earthquake rates requires at least 2, and at most 3,
-   * arguments. At a minimum, the path to a model zip file or directory and the
+   * arguments. At a minimum, the path to a model directory and the
    * site(s) at which to perform calculations must be specified. Under the
    * 2-argument scenario, model initialization and calculation configuration
    * settings are drawn from the config file that <i>must</i> reside at the root
@@ -224,7 +224,7 @@ public class RateCalc {
       .append("  ").append(USAGE_COMMAND).append(NEWLINE)
       .append(NEWLINE)
       .append("Where:").append(NEWLINE)
-      .append("  'model' is a model zip file or directory")
+      .append("  'model' is a model directory")
       .append(NEWLINE)
       .append("  'sites' is either:")
       .append(NEWLINE)