Index: src/platform/AmigaOS/OFString+PathAdditions.m
==================================================================
--- src/platform/AmigaOS/OFString+PathAdditions.m
+++ src/platform/AmigaOS/OFString+PathAdditions.m
@@ -253,10 +253,13 @@
 	return [ret autorelease];
 }
 
 - (OFString *)stringByAppendingPathComponent: (OFString *)component
 {
+	if (self.length == 0)
+		return component;
+
 	if ([self hasSuffix: @"/"] || [self hasSuffix: @":"])
 		return [self stringByAppendingString: component];
 	else {
 		OFMutableString *ret = [[self mutableCopy] autorelease];
 

Index: src/platform/POSIX/OFString+PathAdditions.m
==================================================================
--- src/platform/POSIX/OFString+PathAdditions.m
+++ src/platform/POSIX/OFString+PathAdditions.m
@@ -298,10 +298,13 @@
 	return [ret autorelease];
 }
 
 - (OFString *)stringByAppendingPathComponent: (OFString *)component
 {
+	if (self.length == 0)
+		return component;
+
 	if ([self hasSuffix: @"/"])
 		return [self stringByAppendingString: component];
 	else {
 		OFMutableString *ret = [[self mutableCopy] autorelease];
 

Index: src/platform/Windows/OFString+PathAdditions.m
==================================================================
--- src/platform/Windows/OFString+PathAdditions.m
+++ src/platform/Windows/OFString+PathAdditions.m
@@ -303,10 +303,13 @@
 	return [ret autorelease];
 }
 
 - (OFString *)stringByAppendingPathComponent: (OFString *)component
 {
+	if (self.length == 0)
+		return component;
+
 	if ([self hasSuffix: @"\\"] || [self hasSuffix: @"/"])
 		return [self stringByAppendingString: component];
 	else {
 		OFMutableString *ret = [[self mutableCopy] autorelease];
 

Index: src/platform/libfat/OFString+PathAdditions.m
==================================================================
--- src/platform/libfat/OFString+PathAdditions.m
+++ src/platform/libfat/OFString+PathAdditions.m
@@ -299,10 +299,13 @@
 	return [ret autorelease];
 }
 
 - (OFString *)stringByAppendingPathComponent: (OFString *)component
 {
+	if (self.length == 0)
+		return component;
+
 	if ([self hasSuffix: @"/"])
 		return [self stringByAppendingString: component];
 	else {
 		OFMutableString *ret = [[self mutableCopy] autorelease];