diff --git a/Classes/BITCrashReportTextFormatter.m b/Classes/BITCrashReportTextFormatter.m
index dde183ae45..074b704eaf 100644
--- a/Classes/BITCrashReportTextFormatter.m
+++ b/Classes/BITCrashReportTextFormatter.m
@@ -35,8 +35,23 @@
 
 #import "BITCrashReportTextFormatter.h"
 
+/**
+ * Sort PLCrashReportBinaryImageInfo instances by their starting address.
+ */
+static NSInteger binaryImageSort(id binary1, id binary2, void *context) {
+  uint64_t addr1 = [binary1 imageBaseAddress];
+  uint64_t addr2 = [binary2 imageBaseAddress];
+  
+  if (addr1 < addr2)
+    return NSOrderedAscending;
+  else if (addr1 > addr2)
+    return NSOrderedDescending;
+  else
+    return NSOrderedSame;
+}
+
+
 @interface BITCrashReportTextFormatter (PrivateAPI)
-NSInteger binaryImageSort(id binary1, id binary2, void *context);
 + (NSString *)formatStackFrame:(PLCrashReportStackFrameInfo *)frameInfo 
                     frameIndex:(NSUInteger)frameIndex
                         report:(PLCrashReport *)report;
@@ -586,19 +601,4 @@ NSInteger binaryImageSort(id binary1, id binary2, void *context);
     }
 }
 
-/**
- * Sort PLCrashReportBinaryImageInfo instances by their starting address.
- */
-NSInteger binaryImageSort(id binary1, id binary2, void *context) {
-    uint64_t addr1 = [binary1 imageBaseAddress];
-    uint64_t addr2 = [binary2 imageBaseAddress];
-    
-    if (addr1 < addr2)
-        return NSOrderedAscending;
-    else if (addr1 > addr2)
-        return NSOrderedDescending;
-    else
-        return NSOrderedSame;
-}
-
 @end