diff --git a/src/system/runtime_loader/elf.cpp b/src/system/runtime_loader/elf.cpp
index edaf863b54..430ee9fdb1 100644
--- a/src/system/runtime_loader/elf.cpp
+++ b/src/system/runtime_loader/elf.cpp
@@ -97,14 +97,14 @@ load_immediate_dependencies(image_t *image)
 	if (image->num_needed == 0)
 		return B_OK;
 
-	KTRACE("rld: load_dependencies(\"%s\", id: %ld)", image->name,
+	KTRACE("rld: load_dependencies(\"%s\", id: %" B_PRId32 ")", image->name,
 		image->id);
 
 	image->needed = (image_t**)malloc(image->num_needed * sizeof(image_t *));
 	if (image->needed == NULL) {
 		FATAL("%s: Failed to allocate needed struct\n", image->path);
-		KTRACE("rld: load_dependencies(\"%s\", id: %ld) failed: no memory",
-			image->name, image->id);
+		KTRACE("rld: load_dependencies(\"%s\", id: %" B_PRId32
+			") failed: no memory", image->name, image->id);
 		return B_NO_MEMORY;
 	}
 
@@ -132,8 +132,8 @@ load_immediate_dependencies(image_t *image)
 
 					// Collect all missing libraries in case we report back
 					if (!reportErrors) {
-						KTRACE("rld: load_dependencies(\"%s\", id: %ld) "
-							"failed: %s", image->name, image->id,
+						KTRACE("rld: load_dependencies(\"%s\", id: %" B_PRId32
+							") failed: %s", image->name, image->id,
 							strerror(status));
 						return status;
 					}
@@ -150,7 +150,7 @@ load_immediate_dependencies(image_t *image)
 	}
 
 	if (status < B_OK) {
-		KTRACE("rld: load_dependencies(\"%s\", id: %ld) "
+		KTRACE("rld: load_dependencies(\"%s\", id: %" B_PRId32 ") "
 			"failed: %s", image->name, image->id,
 			strerror(status));
 		return status;
@@ -158,13 +158,13 @@ load_immediate_dependencies(image_t *image)
 
 	if (j != image->num_needed) {
 		FATAL("Internal error at load_dependencies()");
-		KTRACE("rld: load_dependencies(\"%s\", id: %ld) "
+		KTRACE("rld: load_dependencies(\"%s\", id: %" B_PRId32 ") "
 			"failed: internal error", image->name, image->id);
 		return B_ERROR;
 	}
 
-	KTRACE("rld: load_dependencies(\"%s\", id: %ld) done", image->name,
-		image->id);
+	KTRACE("rld: load_dependencies(\"%s\", id: %" B_PRId32 ") done",
+		image->name, image->id);
 
 	return B_OK;
 }
@@ -345,7 +345,7 @@ preload_image(char const* path)
 		add_add_on(image, addOnStruct);
 	}
 
-	KTRACE("rld: preload_image(\"%s\") done: id: %ld", path, image->id);
+	KTRACE("rld: preload_image(\"%s\") done: id: %" B_PRId32, path, image->id);
 
 	return image->id;
 
@@ -451,7 +451,7 @@ load_program(char const *path, void **_entry)
 
 	gProgramLoaded = true;
 
-	KTRACE("rld: load_program(\"%s\") done: entry: %p, id: %ld", path,
+	KTRACE("rld: load_program(\"%s\") done: entry: %p, id: %" B_PRId32 , path,
 		*_entry, gProgramImage->id);
 
 	return gProgramImage->id;
@@ -487,7 +487,7 @@ load_library(char const *path, uint32 flags, bool addOn, void** _handle)
 	if (path == NULL && addOn)
 		return B_BAD_VALUE;
 
-	KTRACE("rld: load_library(\"%s\", 0x%lx, %d)", path, flags, addOn);
+	KTRACE("rld: load_library(\"%s\", %#" B_PRIx32 ", %d)", path, flags, addOn);
 
 	rld_lock();
 		// for now, just do stupid simple global locking
@@ -509,8 +509,8 @@ load_library(char const *path, uint32 flags, bool addOn, void** _handle)
 		if (image) {
 			atomic_add(&image->ref_count, 1);
 			rld_unlock();
-			KTRACE("rld: load_library(\"%s\"): already loaded: %ld", path,
-				image->id);
+			KTRACE("rld: load_library(\"%s\"): already loaded: %" B_PRId32,
+				path, image->id);
 			*_handle = image;
 			return image->id;
 		}
@@ -556,7 +556,7 @@ load_library(char const *path, uint32 flags, bool addOn, void** _handle)
 
 	rld_unlock();
 
-	KTRACE("rld: load_library(\"%s\") done: id: %ld", path, image->id);
+	KTRACE("rld: load_library(\"%s\") done: id: %" B_PRId32, path, image->id);
 
 	*_handle = image;
 	return image->id;
diff --git a/src/system/runtime_loader/elf_load_image.cpp b/src/system/runtime_loader/elf_load_image.cpp
index 63c41186f4..2b12538df7 100644
--- a/src/system/runtime_loader/elf_load_image.cpp
+++ b/src/system/runtime_loader/elf_load_image.cpp
@@ -556,8 +556,8 @@ load_image(char const* name, image_type type, const char* rpath,
 
 	*_image = image;
 
-	KTRACE("rld: load_container(\"%s\"): done: id: %ld (ABI: %#lx)", name,
-		image->id, image->abi);
+	KTRACE("rld: load_container(\"%s\"): done: id: %" B_PRId32 " (ABI: %#"
+		B_PRIx32 ")", name, image->id, image->abi);
 
 	return B_OK;