diff --git a/src/apps/installer/CopyEngine.cpp b/src/apps/installer/CopyEngine.cpp
index a9fb1de985..3b58eb9132 100644
--- a/src/apps/installer/CopyEngine.cpp
+++ b/src/apps/installer/CopyEngine.cpp
@@ -19,8 +19,7 @@
 #include <String.h>
 #include <SymLink.h>
 
-#include "InstallerWindow.h"
-	// TODO: For PACKAGES_DIRECTORY and VAR_DIRECTORY, not so nice...
+#include "InstallerDefs.h"
 #include "SemaphoreLocker.h"
 #include "ProgressReporter.h"
 
@@ -107,7 +106,7 @@ CopyEngine::ResetTargets(const char* source)
 	// makes sense, since passing a volume is meant to folders that are
 	// volume specific, like "trash".
 	BPath path(source);
-	if (path.Append("common/var/swap") == B_OK)
+	if (path.Append(kSwapFilePath) == B_OK)
 		fSwapFileEntry.SetTo(path.Path());
 	else
 		fSwapFileEntry.Unset();
@@ -508,16 +507,16 @@ CopyEngine::_ShouldCopyEntry(const BEntry& entry, const char* name,
 	const struct stat& statInfo, int32 level) const
 {
 	if (level == 1 && S_ISDIR(statInfo.st_mode)) {
-		if (strcmp(VAR_DIRECTORY, name) == 0) {
+		if (strcmp(kVarDirectoryPath, name) == 0) {
 			// old location of /boot/var
 			printf("ignoring '%s'.\n", name);
 			return false;
 		}
-		if (strcmp(PACKAGES_DIRECTORY, name) == 0) {
+		if (strcmp(kPackagesDirectoryPath, name) == 0) {
 			printf("ignoring '%s'.\n", name);
 			return false;
 		}
-		if (strcmp(SOURCES_DIRECTORY, name) == 0) {
+		if (strcmp(kSourcesDirectoryPath, name) == 0) {
 			printf("ignoring '%s'.\n", name);
 			return false;
 		}
diff --git a/src/apps/installer/InstallerDefs.cpp b/src/apps/installer/InstallerDefs.cpp
new file mode 100644
index 0000000000..ae4a55faf3
--- /dev/null
+++ b/src/apps/installer/InstallerDefs.cpp
@@ -0,0 +1,13 @@
+/*
+ * Copyright 2013, Haiku, Inc.
+ * Distributed under the terms of the MIT License.
+ */
+
+
+#include "InstallerDefs.h"
+
+
+const char* const kPackagesDirectoryPath = "_packages_";
+const char* const kSourcesDirectoryPath = "_sources_";
+const char* const kVarDirectoryPath = "var";
+const char* const kSwapFilePath = "common/var/swap";
diff --git a/src/apps/installer/InstallerDefs.h b/src/apps/installer/InstallerDefs.h
new file mode 100644
index 0000000000..3a16dfaf57
--- /dev/null
+++ b/src/apps/installer/InstallerDefs.h
@@ -0,0 +1,15 @@
+/*
+ * Copyright 2013, Haiku, Inc.
+ * Distributed under the terms of the MIT License.
+ */
+#ifndef INSTALLER_DEFS_H
+#define INSTALLER_DEFS_H
+
+
+extern const char* const kPackagesDirectoryPath;
+extern const char* const kSourcesDirectoryPath;
+extern const char* const kVarDirectoryPath;
+extern const char* const kSwapFilePath;
+
+
+#endif	// INSTALLER_DEFS_H
diff --git a/src/apps/installer/InstallerWindow.cpp b/src/apps/installer/InstallerWindow.cpp
index 251f4f57e3..5a681d5360 100644
--- a/src/apps/installer/InstallerWindow.cpp
+++ b/src/apps/installer/InstallerWindow.cpp
@@ -40,6 +40,7 @@
 #include "tracker_private.h"
 
 #include "DialogPane.h"
+#include "InstallerDefs.h"
 #include "PackageViews.h"
 #include "PartitionMenuItem.h"
 #include "WorkerThread.h"
@@ -838,7 +839,7 @@ InstallerWindow::_PublishPackages()
 	} else
 		return; // shouldn't happen
 
-	directory.Append(PACKAGES_DIRECTORY);
+	directory.Append(kPackagesDirectoryPath);
 	BDirectory dir(directory.Path());
 	if (dir.InitCheck() != B_OK)
 		return;
diff --git a/src/apps/installer/InstallerWindow.h b/src/apps/installer/InstallerWindow.h
index 4ef3138248..14c297786d 100644
--- a/src/apps/installer/InstallerWindow.h
+++ b/src/apps/installer/InstallerWindow.h
@@ -39,10 +39,6 @@ const uint32 MSG_INSTALL_FINISHED = 'iIFN';
 const uint32 MSG_RESET = 'iRSI';
 const uint32 MSG_WRITE_BOOT_SECTOR = 'iWBS';
 
-const char PACKAGES_DIRECTORY[] = "_packages_";
-const char SOURCES_DIRECTORY[] = "_sources_";
-const char VAR_DIRECTORY[] = "var";
-
 
 class InstallerWindow : public BWindow {
 public:
diff --git a/src/apps/installer/Jamfile b/src/apps/installer/Jamfile
index ff7553f92f..884a93e434 100644
--- a/src/apps/installer/Jamfile
+++ b/src/apps/installer/Jamfile
@@ -6,6 +6,7 @@ SubDirHdrs [ FDirName $(HAIKU_TOP) src kits tracker ] ;
 Application Installer :
 	CopyEngine.cpp
 	InstallerApp.cpp
+	InstallerDefs.cpp
 	InstallerWindow.cpp
 	PackageViews.cpp
 	PartitionMenuItem.cpp
@@ -26,4 +27,3 @@ DoCatalogs Installer :
 	ProgressReporter.cpp
 	WorkerThread.cpp
 ;
-
diff --git a/src/apps/installer/WorkerThread.cpp b/src/apps/installer/WorkerThread.cpp
index fbb4727430..064375a24d 100644
--- a/src/apps/installer/WorkerThread.cpp
+++ b/src/apps/installer/WorkerThread.cpp
@@ -28,6 +28,7 @@
 
 #include "AutoLocker.h"
 #include "CopyEngine.h"
+#include "InstallerDefs.h"
 #include "InstallerWindow.h"
 #include "PackageViews.h"
 #include "PartitionMenuItem.h"
@@ -423,7 +424,7 @@ WorkerThread::_PerformInstall(BMenu* srcMenu, BMenu* targetMenu)
 
 	// Collect selected packages also
 	if (fPackages) {
-		BPath pkgRootDir(srcDirectory.Path(), PACKAGES_DIRECTORY);
+		BPath pkgRootDir(srcDirectory.Path(), kPackagesDirectoryPath);
 		int32 count = fPackages->CountItems();
 		for (int32 i = 0; i < count; i++) {
 			Package *p = static_cast<Package*>(fPackages->ItemAt(i));
@@ -450,7 +451,7 @@ WorkerThread::_PerformInstall(BMenu* srcMenu, BMenu* targetMenu)
 
 	// copy selected packages
 	if (fPackages) {
-		BPath pkgRootDir(srcDirectory.Path(), PACKAGES_DIRECTORY);
+		BPath pkgRootDir(srcDirectory.Path(), kPackagesDirectoryPath);
 		int32 count = fPackages->CountItems();
 		for (int32 i = 0; i < count; i++) {
 			Package *p = static_cast<Package*>(fPackages->ItemAt(i));
@@ -586,7 +587,7 @@ WorkerThread::_ProcessZipPackages(const char* sourcePath,
 	// TODO: Put those in the optional packages list view
 	// TODO: Implement mechanism to handle dependencies between these
 	// packages. (Selecting one will auto-select others.)
-	BPath pkgRootDir(sourcePath, PACKAGES_DIRECTORY);
+	BPath pkgRootDir(sourcePath, kPackagesDirectoryPath);
 	BDirectory directory(pkgRootDir.Path());
 	BEntry entry;
 	while (directory.GetNextEntry(&entry) == B_OK) {