diff --git a/modules/kobalt-plugin-api/src/main/kotlin/com/beust/kobalt/api/IBuildDirectoryInterceptor.kt b/modules/kobalt-plugin-api/src/main/kotlin/com/beust/kobalt/api/IBuildDirectoryInterceptor.kt
index 5a317c0f..afb0f1ef 100644
--- a/modules/kobalt-plugin-api/src/main/kotlin/com/beust/kobalt/api/IBuildDirectoryInterceptor.kt
+++ b/modules/kobalt-plugin-api/src/main/kotlin/com/beust/kobalt/api/IBuildDirectoryInterceptor.kt
@@ -3,7 +3,7 @@ package com.beust.kobalt.api
 /**
  * Plug-ins can alter the build directory by implementing this interface.
  */
-interface IBuildDirectoryIncerceptor : IInterceptor {
+interface IBuildDirectoryInterceptor : IInterceptor {
     fun intercept(project: Project, context: KobaltContext, buildDirectory: String) : String
 }
 
diff --git a/modules/kobalt-plugin-api/src/main/kotlin/com/beust/kobalt/api/ISourceDirectoriesInterceptor.kt b/modules/kobalt-plugin-api/src/main/kotlin/com/beust/kobalt/api/ISourceDirectoriesInterceptor.kt
index aa39712b..33ec6e7c 100644
--- a/modules/kobalt-plugin-api/src/main/kotlin/com/beust/kobalt/api/ISourceDirectoriesInterceptor.kt
+++ b/modules/kobalt-plugin-api/src/main/kotlin/com/beust/kobalt/api/ISourceDirectoriesInterceptor.kt
@@ -5,7 +5,7 @@ import java.io.File
 /**
  * Plug-ins can alter the source directories by implementing this interface.
  */
-interface ISourceDirectoryIncerceptor : IInterceptor {
+interface ISourceDirectoryInterceptor : IInterceptor {
     fun intercept(project: Project, context: KobaltContext, sourceDirectories: List<File>) : List<File>
 }
 
diff --git a/modules/kobalt-plugin-api/src/main/kotlin/com/beust/kobalt/internal/KobaltPluginXml.kt b/modules/kobalt-plugin-api/src/main/kotlin/com/beust/kobalt/internal/KobaltPluginXml.kt
index 4df2409b..b22ad6ba 100644
--- a/modules/kobalt-plugin-api/src/main/kotlin/com/beust/kobalt/internal/KobaltPluginXml.kt
+++ b/modules/kobalt-plugin-api/src/main/kotlin/com/beust/kobalt/internal/KobaltPluginXml.kt
@@ -76,8 +76,8 @@ class PluginInfo(val xml: KobaltPluginXml, val pluginClassLoader: ClassLoader?,
     val repoContributors = arrayListOf<IRepoContributor>()
     val compilerFlagContributors = arrayListOf<ICompilerFlagContributor>()
     val compilerInterceptors = arrayListOf<ICompilerInterceptor>()
-    val sourceDirectoriesInterceptors = arrayListOf<ISourceDirectoryIncerceptor>()
-    val buildDirectoryInterceptors = arrayListOf<IBuildDirectoryIncerceptor>()
+    val sourceDirectoriesInterceptors = arrayListOf<ISourceDirectoryInterceptor>()
+    val buildDirectoryInterceptors = arrayListOf<IBuildDirectoryInterceptor>()
     val runnerContributors = arrayListOf<IRunnerContributor>()
     val testRunnerContributors = arrayListOf<ITestRunnerContributor>()
     val classpathInterceptors = arrayListOf<IClasspathInterceptor>()
@@ -169,7 +169,7 @@ class PluginInfo(val xml: KobaltPluginXml, val pluginClassLoader: ClassLoader?,
             with(factory.instanceOf(forName(it))) {
                 // Note: can't use "when" here since the same instance can implement multiple interfaces
                 if (this is IBuildConfigFieldContributor) buildConfigFieldContributors.add(this)
-                if (this is IBuildDirectoryIncerceptor) buildDirectoryInterceptors.add(this)
+                if (this is IBuildDirectoryInterceptor) buildDirectoryInterceptors.add(this)
                 if (this is IClasspathContributor) classpathContributors.add(this)
                 if (this is IClasspathInterceptor) classpathInterceptors.add(this)
                 if (this is ICompilerContributor) compilerContributors.add(this)
@@ -182,7 +182,7 @@ class PluginInfo(val xml: KobaltPluginXml, val pluginClassLoader: ClassLoader?,
                 if (this is IRepoContributor) repoContributors.add(this)
                 if (this is IRunnerContributor) runnerContributors.add(this)
                 if (this is ISourceDirectoryContributor) sourceDirContributors.add(this)
-                if (this is ISourceDirectoryIncerceptor) sourceDirectoriesInterceptors.add(this)
+                if (this is ISourceDirectoryInterceptor) sourceDirectoriesInterceptors.add(this)
                 if (this is ITaskContributor) taskContributors.add(this)
                 if (this is ITestRunnerContributor) testRunnerContributors.add(this)
                 if (this is IMavenIdInterceptor) mavenIdInterceptors.add(this)